feat: Add event broadcasting to all webview extensions

- Added emit_to_all_extensions method to ExtensionWebviewManager
- Implemented webview_extension_emit_to_all Tauri command
- Updated UI store to broadcast context changes to webview extensions
- Centralized event and method names using SDK constants
- Updated all handlers to use HAEXTENSION_METHODS constants

This enables proper context propagation (theme, locale, platform) to webview extensions.

README.md

@@ -168,6 +168,32 @@ pnpm install
 pnpm tauri dev
 ```
 
+#### 📦 Release Process
+
+Create a new release using the automated scripts:
+
+```bash
+# Patch release (0.1.13 → 0.1.14)
+pnpm release:patch
+
+# Minor release (0.1.13 → 0.2.0)
+pnpm release:minor
+
+# Major release (0.1.13 → 1.0.0)
+pnpm release:major
+```
+
+The script automatically:
+1. Updates version in `package.json`
+2. Creates a git commit
+3. Creates a git tag
+4. Pushes to remote
+
+GitHub Actions will then automatically:
+- Build desktop apps (macOS, Linux, Windows)
+- Build Android apps (APK and AAB)
+- Create and publish a GitHub release
+
 #### 🧭 Summary
 
 HaexHub aims to:

package.json

@@ -1,7 +1,7 @@
 {
   "name": "haex-hub",
   "private": true,
-  "version": "0.1.12",
+  "version": "0.1.13",
   "type": "module",
   "scripts": {
     "build": "nuxt build",
@@ -14,18 +14,22 @@
     "generate": "nuxt generate",
     "postinstall": "nuxt prepare",
     "preview": "nuxt preview",
+    "release:patch": "node scripts/release.js patch",
+    "release:minor": "node scripts/release.js minor",
+    "release:major": "node scripts/release.js major",
     "tauri:build:debug": "tauri build --debug",
     "tauri": "tauri"
   },
   "dependencies": {
+    "@haexhub/sdk": "^1.9.10",
     "@nuxt/eslint": "1.9.0",
     "@nuxt/fonts": "0.11.4",
     "@nuxt/icon": "2.0.0",
     "@nuxt/ui": "4.1.0",
     "@nuxtjs/i18n": "10.0.6",
-    "@pinia/nuxt": "^0.11.2",
+    "@pinia/nuxt": "^0.11.3",
-    "@supabase/supabase-js": "^2.79.0",
+    "@supabase/supabase-js": "^2.80.0",
-    "@tailwindcss/vite": "^4.1.16",
+    "@tailwindcss/vite": "^4.1.17",
     "@tauri-apps/api": "^2.9.0",
     "@tauri-apps/plugin-dialog": "^2.4.2",
     "@tauri-apps/plugin-fs": "^2.4.4",
@@ -38,32 +42,32 @@
     "@vueuse/gesture": "^2.0.0",
     "@vueuse/nuxt": "^13.9.0",
     "drizzle-orm": "^0.44.7",
-    "eslint": "^9.38.0",
+    "eslint": "^9.39.1",
     "nuxt-zod-i18n": "^1.12.1",
     "swiper": "^12.0.3",
-    "tailwindcss": "^4.1.16",
+    "tailwindcss": "^4.1.17",
-    "vue": "^3.5.22",
+    "vue": "^3.5.24",
     "vue-router": "^4.6.3",
     "zod": "^3.25.76"
   },
   "devDependencies": {
     "@iconify-json/hugeicons": "^1.2.17",
-    "@iconify-json/lucide": "^1.2.71",
+    "@iconify-json/lucide": "^1.2.72",
-    "@iconify/json": "^2.2.401",
+    "@iconify/json": "^2.2.404",
-    "@iconify/tailwind4": "^1.0.6",
+    "@iconify/tailwind4": "^1.1.0",
     "@libsql/client": "^0.15.15",
-    "@tauri-apps/cli": "^2.9.1",
+    "@tauri-apps/cli": "^2.9.3",
-    "@types/node": "^24.9.1",
+    "@types/node": "^24.10.0",
     "@vitejs/plugin-vue": "6.0.1",
-    "@vue/compiler-sfc": "^3.5.22",
+    "@vue/compiler-sfc": "^3.5.24",
-    "drizzle-kit": "^0.31.5",
+    "drizzle-kit": "^0.31.6",
-    "globals": "^16.4.0",
+    "globals": "^16.5.0",
-    "nuxt": "^4.2.0",
+    "nuxt": "^4.2.1",
     "prettier": "3.6.2",
     "tsx": "^4.20.6",
     "tw-animate-css": "^1.4.0",
     "typescript": "^5.9.3",
-    "vite": "^7.1.3",
+    "vite": "^7.2.2",
     "vue-tsc": "3.0.6"
   },
   "prettier": {

scripts/release.js

@@ -0,0 +1,91 @@
+#!/usr/bin/env node
+
+import { readFileSync, writeFileSync } from 'fs';
+import { execSync } from 'child_process';
+import { fileURLToPath } from 'url';
+import { dirname, join } from 'path';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+const rootDir = join(__dirname, '..');
+
+const versionType = process.argv[2];
+
+if (!['patch', 'minor', 'major'].includes(versionType)) {
+  console.error('Usage: pnpm release <patch|minor|major>');
+  process.exit(1);
+}
+
+// Read current package.json
+const packageJsonPath = join(rootDir, 'package.json');
+const packageJson = JSON.parse(readFileSync(packageJsonPath, 'utf8'));
+const currentVersion = packageJson.version;
+
+if (!currentVersion) {
+  console.error('No version found in package.json');
+  process.exit(1);
+}
+
+// Parse version
+const [major, minor, patch] = currentVersion.split('.').map(Number);
+
+// Calculate new version
+let newVersion;
+switch (versionType) {
+  case 'major':
+    newVersion = `${major + 1}.0.0`;
+    break;
+  case 'minor':
+    newVersion = `${major}.${minor + 1}.0`;
+    break;
+  case 'patch':
+    newVersion = `${major}.${minor}.${patch + 1}`;
+    break;
+}
+
+console.log(`📦 Bumping version from ${currentVersion} to ${newVersion}`);
+
+// Update package.json
+packageJson.version = newVersion;
+writeFileSync(packageJsonPath, JSON.stringify(packageJson, null, 2) + '\n');
+console.log('✅ Updated package.json');
+
+// Git operations
+try {
+  // Check if there are uncommitted changes
+  const status = execSync('git status --porcelain', { encoding: 'utf8' });
+  const hasOtherChanges = status
+    .split('\n')
+    .filter(line => line && !line.includes('package.json'))
+    .length > 0;
+
+  if (hasOtherChanges) {
+    console.error('❌ There are uncommitted changes besides package.json. Please commit or stash them first.');
+    process.exit(1);
+  }
+
+  // Add and commit package.json
+  execSync('git add package.json', { stdio: 'inherit' });
+  execSync(`git commit -m "Bump version to ${newVersion}"`, { stdio: 'inherit' });
+  console.log('✅ Committed version bump');
+
+  // Create tag
+  execSync(`git tag v${newVersion}`, { stdio: 'inherit' });
+  console.log(`✅ Created tag v${newVersion}`);
+
+  // Push changes and tag
+  console.log('📤 Pushing to remote...');
+  execSync('git push', { stdio: 'inherit' });
+  execSync(`git push origin v${newVersion}`, { stdio: 'inherit' });
+  console.log('✅ Pushed changes and tag');
+
+  console.log('\n🎉 Release v' + newVersion + ' created successfully!');
+  console.log('📋 GitHub Actions will now build and publish the release.');
+} catch (error) {
+  console.error('❌ Git operation failed:', error.message);
+  // Rollback package.json changes
+  packageJson.version = currentVersion;
+  writeFileSync(packageJsonPath, JSON.stringify(packageJson, null, 2) + '\n');
+  console.log('↩️  Rolled back package.json changes');
+  process.exit(1);
+}

src-tauri/bindings/Action.ts

@@ -1,10 +1,10 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { DbAction } from "./DbAction";
 import type { FsAction } from "./FsAction";
-import type { HttpAction } from "./HttpAction";
 import type { ShellAction } from "./ShellAction";
+import type { WebAction } from "./WebAction";
 
 /**
  * Ein typsicherer Container, der die spezifische Aktion für einen Ressourcentyp enthält.
  */
-export type Action = { "Database": DbAction } | { "Filesystem": FsAction } | { "Http": HttpAction } | { "Shell": ShellAction };
+export type Action = { "Database": DbAction } | { "Filesystem": FsAction } | { "Web": WebAction } | { "Shell": ShellAction };

src-tauri/bindings/DisplayMode.ts

@@ -0,0 +1,3 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+export type DisplayMode = "auto" | "window" | "iframe";

src-tauri/bindings/ExtensionErrorCode.ts

@@ -0,0 +1,6 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Error codes for frontend handling
+ */
+export type ExtensionErrorCode = "SecurityViolation" | "NotFound" | "PermissionDenied" | "MutexPoisoned" | "Database" | "Filesystem" | "FilesystemWithPath" | "Http" | "Web" | "Shell" | "Manifest" | "Validation" | "InvalidPublicKey" | "InvalidSignature" | "InvalidActionString" | "SignatureVerificationFailed" | "CalculateHash" | "Installation";

src-tauri/bindings/ExtensionInfoResponse.ts

@@ -1,3 +1,4 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { DisplayMode } from "./DisplayMode";
 
-export type ExtensionInfoResponse = { id: string, publicKey: string, name: string, version: string, author: string | null, enabled: boolean, description: string | null, homepage: string | null, icon: string | null, entry: string | null, singleInstance: boolean | null, devServerUrl: string | null, };
+export type ExtensionInfoResponse = { id: string, publicKey: string, name: string, version: string, author: string | null, enabled: boolean, description: string | null, homepage: string | null, icon: string | null, entry: string | null, singleInstance: boolean | null, displayMode: DisplayMode | null, devServerUrl: string | null, };

src-tauri/bindings/ExtensionManifest.ts

@@ -1,4 +1,5 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { DisplayMode } from "./DisplayMode";
 import type { ExtensionPermissions } from "./ExtensionPermissions";
 
-export type ExtensionManifest = { name: string, version: string, author: string | null, entry: string | null, icon: string | null, public_key: string, signature: string, permissions: ExtensionPermissions, homepage: string | null, description: string | null, single_instance: boolean | null, };
+export type ExtensionManifest = { name: string, version: string, author: string | null, entry: string | null, icon: string | null, public_key: string, signature: string, permissions: ExtensionPermissions, homepage: string | null, description: string | null, single_instance: boolean | null, display_mode: DisplayMode | null, };

src-tauri/bindings/PermissionConstraints.ts

@@ -1,7 +1,7 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 import type { DbConstraints } from "./DbConstraints";
 import type { FsConstraints } from "./FsConstraints";
-import type { HttpConstraints } from "./HttpConstraints";
 import type { ShellConstraints } from "./ShellConstraints";
+import type { WebConstraints } from "./WebConstraints";
 
-export type PermissionConstraints = DbConstraints | FsConstraints | HttpConstraints | ShellConstraints;
+export type PermissionConstraints = DbConstraints | FsConstraints | WebConstraints | ShellConstraints;

src-tauri/bindings/ResourceType.ts

@@ -1,3 +1,3 @@
 // This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
 
-export type ResourceType = "fs" | "http" | "db" | "shell";
+export type ResourceType = "fs" | "web" | "db" | "shell";

src-tauri/bindings/SerializedExtensionError.ts

@@ -0,0 +1,6 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Serialized representation of ExtensionError for TypeScript
+ */
+export type SerializedExtensionError = { code: number, type: string, message: string, extension_id: string | null, };

src-tauri/bindings/WebAction.ts

@@ -0,0 +1,6 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+
+/**
+ * Definiert Aktionen (HTTP-Methoden), die auf Web-Anfragen angewendet werden können.
+ */
+export type WebAction = "GET" | "POST" | "PUT" | "PATCH" | "DELETE" | "*";

src-tauri/bindings/WebConstraints.ts

@@ -0,0 +1,4 @@
+// This file was generated by [ts-rs](https://github.com/Aleph-Alpha/ts-rs). Do not edit this file manually.
+import type { RateLimit } from "./RateLimit";
+
+export type WebConstraints = { methods: Array<string> | null, rate_limit: RateLimit | null, };

src-tauri/build.rs

@@ -1,6 +1,7 @@
 mod generator;
 
 fn main() {
+    generator::event_names::generate_event_names();
     generator::table_names::generate_table_names();
     generator::rust_types::generate_rust_types();
     tauri_build::build();

src-tauri/capabilities/default.json

@@ -30,10 +30,15 @@
     "fs:allow-resource-write-recursive",
     "fs:allow-download-read-recursive",
     "fs:allow-download-write-recursive",
+    "fs:allow-temp-read-recursive",
+    "fs:allow-temp-write-recursive",
     "fs:default",
     {
       "identifier": "fs:scope",
-      "allow": [{ "path": "**" }]
+      "allow": [
+        { "path": "**" },
+        { "path": "$TEMP/**" }
+      ]
     },
     "http:allow-fetch-send",
     "http:allow-fetch",
@@ -44,6 +49,12 @@
     "notification:allow-is-permission-granted",
     "notification:default",
     "opener:allow-open-url",
+    {
+      "identifier": "opener:allow-open-path",
+      "allow": [
+        { "path": "$TEMP/**" }
+      ]
+    },
     "opener:default",
     "os:allow-hostname",
     "os:default",

src-tauri/capabilities/extensions.json

@@ -0,0 +1,16 @@
+{
+  "$schema": "../gen/schemas/desktop-schema.json",
+  "identifier": "extensions",
+  "description": "Minimal capability for extension webviews - extensions have NO direct system access",
+  "local": true,
+  "webviews": ["ext_*"],
+  "permissions": [
+    "core:default",
+    "core:webview:default",
+    "notification:default",
+    "notification:allow-is-permission-granted"
+  ],
+  "remote": {
+    "urls": ["http://localhost:*", "haex-extension://*"]
+  }
+}

src-tauri/database/migrations/0004_fast_epoch.sql

@@ -0,0 +1,10 @@
+CREATE TABLE `haex_sync_status` (
+	`id` text PRIMARY KEY NOT NULL,
+	`backend_id` text NOT NULL,
+	`last_pull_sequence` integer,
+	`last_push_hlc_timestamp` text,
+	`last_sync_at` text,
+	`error` text
+);
+--> statement-breakpoint
+ALTER TABLE `haex_extensions` ADD `display_mode` text DEFAULT 'auto';

src-tauri/database/migrations/meta/0004_snapshot.json

@@ -0,0 +1,903 @@
+{
+  "version": "6",
+  "dialect": "sqlite",
+  "id": "7ae230a2-4488-4214-9163-602018852676",
+  "prevId": "bf82259e-9264-44e7-a60f-8cc14a1f22e2",
+  "tables": {
+    "haex_crdt_configs": {
+      "name": "haex_crdt_configs",
+      "columns": {
+        "key": {
+          "name": "key",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "value": {
+          "name": "value",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "haex_crdt_logs": {
+      "name": "haex_crdt_logs",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "haex_timestamp": {
+          "name": "haex_timestamp",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "table_name": {
+          "name": "table_name",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "row_pks": {
+          "name": "row_pks",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "op_type": {
+          "name": "op_type",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "column_name": {
+          "name": "column_name",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "new_value": {
+          "name": "new_value",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "old_value": {
+          "name": "old_value",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {
+        "idx_haex_timestamp": {
+          "name": "idx_haex_timestamp",
+          "columns": [
+            "haex_timestamp"
+          ],
+          "isUnique": false
+        },
+        "idx_table_row": {
+          "name": "idx_table_row",
+          "columns": [
+            "table_name",
+            "row_pks"
+          ],
+          "isUnique": false
+        }
+      },
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "haex_crdt_snapshots": {
+      "name": "haex_crdt_snapshots",
+      "columns": {
+        "snapshot_id": {
+          "name": "snapshot_id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "created": {
+          "name": "created",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "epoch_hlc": {
+          "name": "epoch_hlc",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "location_url": {
+          "name": "location_url",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "file_size_bytes": {
+          "name": "file_size_bytes",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "haex_sync_status": {
+      "name": "haex_sync_status",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "backend_id": {
+          "name": "backend_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "last_pull_sequence": {
+          "name": "last_pull_sequence",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "last_push_hlc_timestamp": {
+          "name": "last_push_hlc_timestamp",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "last_sync_at": {
+          "name": "last_sync_at",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "error": {
+          "name": "error",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "haex_desktop_items": {
+      "name": "haex_desktop_items",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "workspace_id": {
+          "name": "workspace_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "item_type": {
+          "name": "item_type",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "extension_id": {
+          "name": "extension_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "system_window_id": {
+          "name": "system_window_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "position_x": {
+          "name": "position_x",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": 0
+        },
+        "position_y": {
+          "name": "position_y",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": 0
+        },
+        "haex_timestamp": {
+          "name": "haex_timestamp",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {
+        "haex_desktop_items_workspace_id_haex_workspaces_id_fk": {
+          "name": "haex_desktop_items_workspace_id_haex_workspaces_id_fk",
+          "tableFrom": "haex_desktop_items",
+          "tableTo": "haex_workspaces",
+          "columnsFrom": [
+            "workspace_id"
+          ],
+          "columnsTo": [
+            "id"
+          ],
+          "onDelete": "cascade",
+          "onUpdate": "no action"
+        },
+        "haex_desktop_items_extension_id_haex_extensions_id_fk": {
+          "name": "haex_desktop_items_extension_id_haex_extensions_id_fk",
+          "tableFrom": "haex_desktop_items",
+          "tableTo": "haex_extensions",
+          "columnsFrom": [
+            "extension_id"
+          ],
+          "columnsTo": [
+            "id"
+          ],
+          "onDelete": "cascade",
+          "onUpdate": "no action"
+        }
+      },
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {
+        "item_reference": {
+          "name": "item_reference",
+          "value": "(\"haex_desktop_items\".\"item_type\" = 'extension' AND \"haex_desktop_items\".\"extension_id\" IS NOT NULL AND \"haex_desktop_items\".\"system_window_id\" IS NULL) OR (\"haex_desktop_items\".\"item_type\" = 'system' AND \"haex_desktop_items\".\"system_window_id\" IS NOT NULL AND \"haex_desktop_items\".\"extension_id\" IS NULL) OR (\"haex_desktop_items\".\"item_type\" = 'file' AND \"haex_desktop_items\".\"system_window_id\" IS NOT NULL AND \"haex_desktop_items\".\"extension_id\" IS NULL) OR (\"haex_desktop_items\".\"item_type\" = 'folder' AND \"haex_desktop_items\".\"system_window_id\" IS NOT NULL AND \"haex_desktop_items\".\"extension_id\" IS NULL)"
+        }
+      }
+    },
+    "haex_devices": {
+      "name": "haex_devices",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "device_id": {
+          "name": "device_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "name": {
+          "name": "name",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "(CURRENT_TIMESTAMP)"
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "haex_timestamp": {
+          "name": "haex_timestamp",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {
+        "haex_devices_device_id_unique": {
+          "name": "haex_devices_device_id_unique",
+          "columns": [
+            "device_id"
+          ],
+          "isUnique": true
+        }
+      },
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "haex_extension_permissions": {
+      "name": "haex_extension_permissions",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "extension_id": {
+          "name": "extension_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "resource_type": {
+          "name": "resource_type",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "action": {
+          "name": "action",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "target": {
+          "name": "target",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "constraints": {
+          "name": "constraints",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "status": {
+          "name": "status",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": "'denied'"
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "(CURRENT_TIMESTAMP)"
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "haex_timestamp": {
+          "name": "haex_timestamp",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {
+        "haex_extension_permissions_extension_id_resource_type_action_target_unique": {
+          "name": "haex_extension_permissions_extension_id_resource_type_action_target_unique",
+          "columns": [
+            "extension_id",
+            "resource_type",
+            "action",
+            "target"
+          ],
+          "isUnique": true
+        }
+      },
+      "foreignKeys": {
+        "haex_extension_permissions_extension_id_haex_extensions_id_fk": {
+          "name": "haex_extension_permissions_extension_id_haex_extensions_id_fk",
+          "tableFrom": "haex_extension_permissions",
+          "tableTo": "haex_extensions",
+          "columnsFrom": [
+            "extension_id"
+          ],
+          "columnsTo": [
+            "id"
+          ],
+          "onDelete": "cascade",
+          "onUpdate": "no action"
+        }
+      },
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "haex_extensions": {
+      "name": "haex_extensions",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "public_key": {
+          "name": "public_key",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "name": {
+          "name": "name",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "version": {
+          "name": "version",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "author": {
+          "name": "author",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "description": {
+          "name": "description",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "entry": {
+          "name": "entry",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "'index.html'"
+        },
+        "homepage": {
+          "name": "homepage",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "enabled": {
+          "name": "enabled",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": true
+        },
+        "icon": {
+          "name": "icon",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "signature": {
+          "name": "signature",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "single_instance": {
+          "name": "single_instance",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": false
+        },
+        "display_mode": {
+          "name": "display_mode",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "'auto'"
+        },
+        "haex_timestamp": {
+          "name": "haex_timestamp",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {
+        "haex_extensions_public_key_name_unique": {
+          "name": "haex_extensions_public_key_name_unique",
+          "columns": [
+            "public_key",
+            "name"
+          ],
+          "isUnique": true
+        }
+      },
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "haex_notifications": {
+      "name": "haex_notifications",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "alt": {
+          "name": "alt",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "date": {
+          "name": "date",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "icon": {
+          "name": "icon",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "image": {
+          "name": "image",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "read": {
+          "name": "read",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "source": {
+          "name": "source",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "text": {
+          "name": "text",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "title": {
+          "name": "title",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "type": {
+          "name": "type",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "haex_timestamp": {
+          "name": "haex_timestamp",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "haex_settings": {
+      "name": "haex_settings",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "device_id": {
+          "name": "device_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "key": {
+          "name": "key",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "type": {
+          "name": "type",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "value": {
+          "name": "value",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "haex_timestamp": {
+          "name": "haex_timestamp",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {
+        "haex_settings_device_id_key_type_unique": {
+          "name": "haex_settings_device_id_key_type_unique",
+          "columns": [
+            "device_id",
+            "key",
+            "type"
+          ],
+          "isUnique": true
+        }
+      },
+      "foreignKeys": {
+        "haex_settings_device_id_haex_devices_id_fk": {
+          "name": "haex_settings_device_id_haex_devices_id_fk",
+          "tableFrom": "haex_settings",
+          "tableTo": "haex_devices",
+          "columnsFrom": [
+            "device_id"
+          ],
+          "columnsTo": [
+            "id"
+          ],
+          "onDelete": "cascade",
+          "onUpdate": "no action"
+        }
+      },
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "haex_sync_backends": {
+      "name": "haex_sync_backends",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "name": {
+          "name": "name",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "server_url": {
+          "name": "server_url",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "enabled": {
+          "name": "enabled",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": true
+        },
+        "priority": {
+          "name": "priority",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": 0
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false,
+          "default": "(CURRENT_TIMESTAMP)"
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "haex_timestamp": {
+          "name": "haex_timestamp",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "haex_workspaces": {
+      "name": "haex_workspaces",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "device_id": {
+          "name": "device_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "name": {
+          "name": "name",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "position": {
+          "name": "position",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false,
+          "default": 0
+        },
+        "background": {
+          "name": "background",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "haex_timestamp": {
+          "name": "haex_timestamp",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {
+        "haex_workspaces_position_unique": {
+          "name": "haex_workspaces_position_unique",
+          "columns": [
+            "position"
+          ],
+          "isUnique": true
+        }
+      },
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    }
+  },
+  "views": {},
+  "enums": {},
+  "_meta": {
+    "schemas": {},
+    "tables": {},
+    "columns": {}
+  },
+  "internal": {
+    "indexes": {}
+  }
+}

src-tauri/database/migrations/meta/_journal.json

@@ -29,6 +29,13 @@
       "when": 1762300795436,
       "tag": "0003_luxuriant_deathstrike",
       "breakpoints": true
+    },
+    {
+      "idx": 4,
+      "version": "6",
+      "when": 1762894662424,
+      "tag": "0004_fast_epoch",
+      "breakpoints": true
     }
   ]
 }

src-tauri/gen/schemas/capabilities.json

@@ -1 +1 @@
-{"default":{"identifier":"default","description":"Capability for the main window","local":true,"windows":["main"],"permissions":["core:default","core:webview:allow-create-webview-window","core:webview:allow-create-webview","core:webview:allow-webview-show","core:webview:default","core:window:allow-create","core:window:allow-get-all-windows","core:window:allow-show","core:window:default","dialog:default","fs:allow-appconfig-read-recursive","fs:allow-appconfig-write-recursive","fs:allow-appdata-read-recursive","fs:allow-appdata-write-recursive","fs:allow-applocaldata-read-recursive","fs:allow-applocaldata-write-recursive","fs:allow-read-file","fs:allow-write-file","fs:allow-read-dir","fs:allow-mkdir","fs:allow-exists","fs:allow-remove","fs:allow-resource-read-recursive","fs:allow-resource-write-recursive","fs:allow-download-read-recursive","fs:allow-download-write-recursive","fs:default",{"identifier":"fs:scope","allow":[{"path":"**"}]},"http:allow-fetch-send","http:allow-fetch","http:default","notification:allow-create-channel","notification:allow-list-channels","notification:allow-notify","notification:allow-is-permission-granted","notification:default","opener:allow-open-url","opener:default","os:allow-hostname","os:default","store:default"]}}
+{"default":{"identifier":"default","description":"Capability for the main window","local":true,"windows":["main"],"permissions":["core:default","core:webview:allow-create-webview-window","core:webview:allow-create-webview","core:webview:allow-webview-show","core:webview:default","core:window:allow-create","core:window:allow-get-all-windows","core:window:allow-show","core:window:default","dialog:default","fs:allow-appconfig-read-recursive","fs:allow-appconfig-write-recursive","fs:allow-appdata-read-recursive","fs:allow-appdata-write-recursive","fs:allow-applocaldata-read-recursive","fs:allow-applocaldata-write-recursive","fs:allow-read-file","fs:allow-write-file","fs:allow-read-dir","fs:allow-mkdir","fs:allow-exists","fs:allow-remove","fs:allow-resource-read-recursive","fs:allow-resource-write-recursive","fs:allow-download-read-recursive","fs:allow-download-write-recursive","fs:allow-temp-read-recursive","fs:allow-temp-write-recursive","fs:default",{"identifier":"fs:scope","allow":[{"path":"**"},{"path":"$TEMP/**"}]},"http:allow-fetch-send","http:allow-fetch","http:default","notification:allow-create-channel","notification:allow-list-channels","notification:allow-notify","notification:allow-is-permission-granted","notification:default","opener:allow-open-url",{"identifier":"opener:allow-open-path","allow":[{"path":"$TEMP/**"}]},"opener:default","os:allow-hostname","os:default","store:default"]},"extensions":{"identifier":"extensions","description":"Minimal capability for extension webviews - extensions have NO direct system access","remote":{"urls":["http://localhost:*","haex-extension://*"]},"local":true,"webviews":["ext_*"],"permissions":["core:default","core:webview:default","notification:default","notification:allow-is-permission-granted"]}}

src-tauri/generator/event_names.rs

@@ -0,0 +1,76 @@
+// src-tauri/generator/event_names.rs
+use serde::Deserialize;
+use std::collections::HashMap;
+use std::env;
+use std::fs::File;
+use std::io::{BufReader, Write};
+use std::path::Path;
+
+#[derive(Debug, Deserialize)]
+struct EventNames {
+    extension: HashMap<String, String>,
+}
+
+pub fn generate_event_names() {
+    let out_dir = env::var("OUT_DIR").expect("OUT_DIR ist nicht gesetzt.");
+    println!("Generiere Event-Namen nach {out_dir}");
+    let events_path = Path::new("../src/constants/eventNames.json");
+    let dest_path = Path::new(&out_dir).join("eventNames.rs");
+
+    let file = File::open(events_path).expect("Konnte eventNames.json nicht öffnen");
+    let reader = BufReader::new(file);
+    let events: EventNames =
+        serde_json::from_reader(reader).expect("Konnte eventNames.json nicht parsen");
+
+    let mut code = String::from(
+        r#"
+// ==================================================================
+// HINWEIS: Diese Datei wurde automatisch von build.rs generiert.
+// Manuelle Änderungen werden bei der nächsten Kompilierung überschrieben!
+// ==================================================================
+
+"#,
+    );
+
+    // Extension Events
+    code.push_str("// --- Extension Events ---\n");
+    for (key, value) in &events.extension {
+        let const_name = format!("EVENT_EXTENSION_{}", to_screaming_snake_case(key));
+        code.push_str(&format!(
+            "pub const {}: &str = \"{}\";\n",
+            const_name, value
+        ));
+    }
+    code.push('\n');
+
+    // --- Datei schreiben ---
+    let mut f = File::create(&dest_path).expect("Konnte Zieldatei nicht erstellen");
+    f.write_all(code.as_bytes())
+        .expect("Konnte nicht in Zieldatei schreiben");
+
+    println!("cargo:rerun-if-changed=../src/constants/eventNames.json");
+}
+
+/// Konvertiert einen String zu SCREAMING_SNAKE_CASE
+fn to_screaming_snake_case(s: &str) -> String {
+    let mut result = String::new();
+    let mut prev_is_lower = false;
+
+    for (i, ch) in s.chars().enumerate() {
+        if ch == '_' {
+            result.push('_');
+            prev_is_lower = false;
+        } else if ch.is_uppercase() {
+            if i > 0 && prev_is_lower {
+                result.push('_');
+            }
+            result.push(ch);
+            prev_is_lower = false;
+        } else {
+            result.push(ch.to_ascii_uppercase());
+            prev_is_lower = true;
+        }
+    }
+
+    result
+}

src-tauri/generator/mod.rs

@@ -1,3 +1,4 @@
 // build/mod.rs
+pub mod event_names;
 pub mod rust_types;
 pub mod table_names;

src-tauri/src/extension/core/manager.rs

@@ -2,7 +2,7 @@ use crate::database::core::with_connection;
 use crate::database::error::DatabaseError;
 use crate::extension::core::manifest::{EditablePermissions, ExtensionManifest, ExtensionPreview};
 use crate::extension::core::types::{copy_directory, Extension, ExtensionSource};
-use crate::extension::core::ExtensionPermissions;
+use crate::extension::core::{DisplayMode, ExtensionPermissions};
 use crate::extension::crypto::ExtensionCrypto;
 use crate::extension::database::executor::SqlExecutor;
 use crate::extension::error::ExtensionError;
@@ -136,12 +136,16 @@ impl ExtensionManager {
 
         // Fallback 1: Check haextension/favicon.ico
         let haextension_favicon = format!("{haextension_dir}/favicon.ico");
-        if let Some(clean_path) = Self::validate_path_in_directory(extension_dir, &haextension_favicon, true)? {
+        if let Some(clean_path) =
+            Self::validate_path_in_directory(extension_dir, &haextension_favicon, true)?
+        {
             return Ok(Some(clean_path.to_string_lossy().to_string()));
         }
 
         // Fallback 2: Check public/favicon.ico
-        if let Some(clean_path) = Self::validate_path_in_directory(extension_dir, "public/favicon.ico", true)? {
+        if let Some(clean_path) =
+            Self::validate_path_in_directory(extension_dir, "public/favicon.ico", true)?
+        {
             return Ok(Some(clean_path.to_string_lossy().to_string()));
         }
 
@@ -156,16 +160,20 @@ impl ExtensionManager {
         app_handle: &AppHandle,
     ) -> Result<ExtractedExtension, ExtensionError> {
         // Use app_cache_dir for better Android compatibility
-        let cache_dir = app_handle
+        let cache_dir =
-            .path()
+            app_handle
-            .app_cache_dir()
+                .path()
-            .map_err(|e| ExtensionError::InstallationFailed {
+                .app_cache_dir()
-                reason: format!("Cannot get app cache dir: {e}"),
+                .map_err(|e| ExtensionError::InstallationFailed {
-            })?;
+                    reason: format!("Cannot get app cache dir: {e}"),
+                })?;
 
         let temp_id = uuid::Uuid::new_v4();
         let temp = cache_dir.join(format!("{temp_prefix}_{temp_id}"));
-        let zip_file_path = cache_dir.join(format!("{}_{}_{}.haextension", temp_prefix, temp_id, "temp"));
+        let zip_file_path = cache_dir.join(format!(
+            "{}_{}_{}.haextension",
+            temp_prefix, temp_id, "temp"
+        ));
 
         // Write bytes to a temporary ZIP file first (important for Android file system)
         fs::write(&zip_file_path, &bytes).map_err(|e| {
@@ -181,11 +189,10 @@ impl ExtensionManager {
             ExtensionError::filesystem_with_path(zip_file_path.display().to_string(), e)
         })?;
 
-        let mut archive = ZipArchive::new(zip_file).map_err(|e| {
+        let mut archive =
-            ExtensionError::InstallationFailed {
+            ZipArchive::new(zip_file).map_err(|e| ExtensionError::InstallationFailed {
                 reason: format!("Invalid ZIP: {e}"),
-            }
+            })?;
-        })?;
 
         archive
             .extract(&temp)
@@ -199,15 +206,17 @@ impl ExtensionManager {
         // Read haextension_dir from config if it exists, otherwise use default
         let config_path = temp.join("haextension.config.json");
         let haextension_dir = if config_path.exists() {
-            let config_content = std::fs::read_to_string(&config_path)
+            let config_content = std::fs::read_to_string(&config_path).map_err(|e| {
-                .map_err(|e| ExtensionError::ManifestError {
+                ExtensionError::ManifestError {
                     reason: format!("Cannot read haextension.config.json: {e}"),
-                })?;
+                }
+            })?;
 
-            let config: serde_json::Value = serde_json::from_str(&config_content)
+            let config: serde_json::Value = serde_json::from_str(&config_content).map_err(|e| {
-                .map_err(|e| ExtensionError::ManifestError {
+                ExtensionError::ManifestError {
                     reason: format!("Invalid haextension.config.json: {e}"),
-                })?;
+                }
+            })?;
 
             let dir = config
                 .get("dev")
@@ -237,14 +246,19 @@ impl ExtensionManager {
         let mut manifest: ExtensionManifest = serde_json::from_str(&manifest_content)?;
 
         // Validate and resolve icon path with fallback logic
-        let validated_icon = Self::validate_and_resolve_icon_path(&actual_dir, &haextension_dir, manifest.icon.as_deref())?;
+        let validated_icon = Self::validate_and_resolve_icon_path(
+            &actual_dir,
+            &haextension_dir,
+            manifest.icon.as_deref(),
+        )?;
         manifest.icon = validated_icon;
 
-        let content_hash = ExtensionCrypto::hash_directory(&actual_dir, &manifest_path).map_err(|e| {
+        let content_hash =
-            ExtensionError::SignatureVerificationFailed {
+            ExtensionCrypto::hash_directory(&actual_dir, &manifest_path).map_err(|e| {
-                reason: e.to_string(),
+                ExtensionError::SignatureVerificationFailed {
-            }
+                    reason: e.to_string(),
-        })?;
+                }
+            })?;
 
         Ok(ExtractedExtension {
             temp_dir: actual_dir,
@@ -437,9 +451,7 @@ impl ExtensionManager {
             })?;
 
         eprintln!("DEBUG: Removing extension with ID: {}", extension.id);
-        eprintln!(
+        eprintln!("DEBUG: Extension name: {extension_name}, version: {extension_version}");
-            "DEBUG: Extension name: {extension_name}, version: {extension_version}"
-        );
 
         // Lösche Permissions und Extension-Eintrag in einer Transaktion
         with_connection(&state.db, |conn| {
@@ -516,7 +528,8 @@ impl ExtensionManager {
         app_handle: &AppHandle,
         file_bytes: Vec<u8>,
     ) -> Result<ExtensionPreview, ExtensionError> {
-        let extracted = Self::extract_and_validate_extension(file_bytes, "haexhub_preview", app_handle)?;
+        let extracted =
+            Self::extract_and_validate_extension(file_bytes, "haexhub_preview", app_handle)?;
 
         let is_valid_signature = ExtensionCrypto::verify_signature(
             &extracted.manifest.public_key,
@@ -541,7 +554,8 @@ impl ExtensionManager {
         custom_permissions: EditablePermissions,
         state: &State<'_, AppState>,
     ) -> Result<String, ExtensionError> {
-        let extracted = Self::extract_and_validate_extension(file_bytes, "haexhub_ext", &app_handle)?;
+        let extracted =
+            Self::extract_and_validate_extension(file_bytes, "haexhub_ext", &app_handle)?;
 
         // Signatur verifizieren (bei Installation wird ein Fehler geworfen, nicht nur geprüft)
         ExtensionCrypto::verify_signature(
@@ -612,28 +626,29 @@ impl ExtensionManager {
 
             // 1. Extension-Eintrag erstellen mit generierter UUID
             let insert_ext_sql = format!(
-                "INSERT INTO {TABLE_EXTENSIONS} (id, name, version, author, entry, icon, public_key, signature, homepage, description, enabled, single_instance) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"
+                "INSERT INTO {TABLE_EXTENSIONS} (id, name, version, author, entry, icon, public_key, signature, homepage, description, enabled, single_instance, display_mode) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"
             );
 
             SqlExecutor::execute_internal_typed(
-                    &tx,
+                &tx,
-                    &hlc_service,
+                &hlc_service,
-                    &insert_ext_sql,
+                &insert_ext_sql,
-                    rusqlite::params![
+                rusqlite::params![
-                        extension_id,
+                    extension_id,
-                        extracted.manifest.name,
+                    extracted.manifest.name,
-                        extracted.manifest.version,
+                    extracted.manifest.version,
-                        extracted.manifest.author,
+                    extracted.manifest.author,
-                        extracted.manifest.entry,
+                    extracted.manifest.entry,
-                        extracted.manifest.icon,
+                    extracted.manifest.icon,
-                        extracted.manifest.public_key,
+                    extracted.manifest.public_key,
-                        extracted.manifest.signature,
+                    extracted.manifest.signature,
-                        extracted.manifest.homepage,
+                    extracted.manifest.homepage,
-                        extracted.manifest.description,
+                    extracted.manifest.description,
-                        true, // enabled
+                    true, // enabled
-                        extracted.manifest.single_instance.unwrap_or(false),
+                    extracted.manifest.single_instance.unwrap_or(false),
-                    ],
+                    extracted.manifest.display_mode.as_ref().map(|dm| format!("{:?}", dm).to_lowercase()).unwrap_or_else(|| "auto".to_string()),
-                )?;
+                ],
+            )?;
 
             // 2. Permissions speichern
             let insert_perm_sql = format!(
@@ -709,7 +724,7 @@ impl ExtensionManager {
         // Lade alle Daten aus der Datenbank
         let extensions = with_connection(&state.db, |conn| {
             let sql = format!(
-            "SELECT id, name, version, author, entry, icon, public_key, signature, homepage, description, enabled, single_instance FROM {TABLE_EXTENSIONS}"
+            "SELECT id, name, version, author, entry, icon, public_key, signature, homepage, description, enabled, single_instance, display_mode FROM {TABLE_EXTENSIONS}"
         );
             eprintln!("DEBUG: SQL Query before transformation: {sql}");
 
@@ -750,6 +765,11 @@ impl ExtensionManager {
                     single_instance: row[11]
                         .as_bool()
                         .or_else(|| row[11].as_i64().map(|v| v != 0)),
+                    display_mode: row[12].as_str().and_then(|s| match s {
+                        "window" => Some(DisplayMode::Window),
+                        "iframe" => Some(DisplayMode::Iframe),
+                        "auto" | _ => Some(DisplayMode::Auto),
+                    }),
                 };
 
                 let enabled = row[10]
@@ -808,14 +828,12 @@ impl ExtensionManager {
                 match std::fs::read_to_string(&config_path) {
                     Ok(config_content) => {
                         match serde_json::from_str::<serde_json::Value>(&config_content) {
-                            Ok(config) => {
+                            Ok(config) => config
-                                config
+                                .get("dev")
-                                    .get("dev")
+                                .and_then(|dev| dev.get("haextension_dir"))
-                                    .and_then(|dev| dev.get("haextension_dir"))
+                                .and_then(|dir| dir.as_str())
-                                    .and_then(|dir| dir.as_str())
+                                .unwrap_or("haextension")
-                                    .unwrap_or("haextension")
+                                .to_string(),
-                                    .to_string()
-                            }
                             Err(_) => "haextension".to_string(),
                         }
                     }

src-tauri/src/extension/core/manifest.rs

@@ -1,6 +1,6 @@
 use crate::extension::error::ExtensionError;
 use crate::extension::permissions::types::{
-    Action, DbAction, ExtensionPermission, FsAction, HttpAction, PermissionConstraints,
+    Action, DbAction, ExtensionPermission, FsAction, WebAction, PermissionConstraints,
     PermissionStatus, ResourceType, ShellAction,
 };
 use serde::{Deserialize, Serialize};
@@ -13,7 +13,8 @@ use ts_rs::TS;
 pub struct PermissionEntry {
     pub target: String,
 
-    /// Die auszuführende Aktion (z.B. "read", "read_write", "GET", "execute").
+    /// Die auszuführende Aktion (z.B. "read", "read_write", "execute").
+    /// Für Web-Permissions ist dies optional und wird ignoriert.
     #[serde(default, skip_serializing_if = "Option::is_none")]
     pub operation: Option<String>,
 
@@ -51,10 +52,29 @@ pub struct ExtensionPermissions {
 /// Typ-Alias für bessere Lesbarkeit, wenn die Struktur als UI-Modell verwendet wird.
 pub type EditablePermissions = ExtensionPermissions;
 
+#[derive(Serialize, Deserialize, Clone, Debug, TS)]
+#[ts(export)]
+#[serde(rename_all = "lowercase")]
+pub enum DisplayMode {
+    /// Platform decides: Desktop = window, Mobile/Web = iframe (default)
+    Auto,
+    /// Always open in native window (if available, falls back to iframe)
+    Window,
+    /// Always open in iframe (embedded in main app)
+    Iframe,
+}
+
+impl Default for DisplayMode {
+    fn default() -> Self {
+        Self::Auto
+    }
+}
+
 #[derive(Serialize, Deserialize, Clone, Debug, TS)]
 #[ts(export)]
 pub struct ExtensionManifest {
     pub name: String,
+    #[serde(default = "default_version_value")]
     pub version: String,
     pub author: Option<String>,
     #[serde(default = "default_entry_value")]
@@ -67,12 +87,18 @@ pub struct ExtensionManifest {
     pub description: Option<String>,
     #[serde(default)]
     pub single_instance: Option<bool>,
+    #[serde(default)]
+    pub display_mode: Option<DisplayMode>,
 }
 
 fn default_entry_value() -> Option<String> {
     Some("index.html".to_string())
 }
 
+fn default_version_value() -> String {
+    "0.0.0-dev".to_string()
+}
+
 impl ExtensionManifest {
     /// Konvertiert die Manifest-Berechtigungen in das bearbeitbare UI-Modell,
     /// indem der Standardstatus `Granted` gesetzt wird.
@@ -117,7 +143,7 @@ impl ExtensionPermissions {
         }
         if let Some(entries) = &self.http {
             for p in entries {
-                if let Some(perm) = Self::create_internal(extension_id, ResourceType::Http, p) {
+                if let Some(perm) = Self::create_internal(extension_id, ResourceType::Web, p) {
                     permissions.push(perm);
                 }
             }
@@ -146,7 +172,14 @@ impl ExtensionPermissions {
             ResourceType::Fs => FsAction::from_str(operation_str)
                 .ok()
                 .map(Action::Filesystem),
-            ResourceType::Http => HttpAction::from_str(operation_str).ok().map(Action::Http),
+            ResourceType::Web => {
+                // For web permissions, operation is optional - default to All
+                if operation_str.is_empty() {
+                    Some(Action::Web(WebAction::All))
+                } else {
+                    WebAction::from_str(operation_str).ok().map(Action::Web)
+                }
+            }
             ResourceType::Shell => ShellAction::from_str(operation_str).ok().map(Action::Shell),
         };
 
@@ -181,6 +214,7 @@ pub struct ExtensionInfoResponse {
     pub icon: Option<String>,
     pub entry: Option<String>,
     pub single_instance: Option<bool>,
+    pub display_mode: Option<DisplayMode>,
     #[serde(skip_serializing_if = "Option::is_none")]
     pub dev_server_url: Option<String>,
 }
@@ -208,6 +242,7 @@ impl ExtensionInfoResponse {
             icon: extension.manifest.icon.clone(),
             entry: extension.manifest.entry.clone(),
             single_instance: extension.manifest.single_instance,
+            display_mode: extension.manifest.display_mode.clone(),
             dev_server_url,
         })
     }

src-tauri/src/extension/core/protocol.rs

@@ -25,10 +25,10 @@ lazy_static::lazy_static! {
 
 #[derive(Deserialize, Serialize, Debug, Clone)]
 #[serde(rename_all = "camelCase")]
-struct ExtensionInfo {
+pub struct ExtensionInfo {
-    public_key: String,
+    pub public_key: String,
-    name: String,
+    pub name: String,
-    version: String,
+    pub version: String,
 }
 
 #[derive(Debug)]

src-tauri/src/extension/database/mod.rs

@@ -141,6 +141,11 @@ pub async fn extension_sql_execute(
 
     let mut statement = ast_vec.pop().unwrap();
 
+    // If this is a SELECT statement, delegate to extension_sql_select
+    if matches!(statement, Statement::Query(_)) {
+        return extension_sql_select(sql, params, public_key, name, state).await;
+    }
+
     // Check if statement has RETURNING clause
     let has_returning = crate::database::core::statement_has_returning(&statement);
 

src-tauri/src/extension/error.rs

@@ -1,10 +1,12 @@
 // src-tauri/src/extension/error.rs
 use thiserror::Error;
+use ts_rs::TS;
 
 use crate::database::error::DatabaseError;
 
 /// Error codes for frontend handling
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, TS)]
+#[ts(export)]
 pub enum ExtensionErrorCode {
     SecurityViolation = 1000,
     NotFound = 1001,
@@ -14,6 +16,7 @@ pub enum ExtensionErrorCode {
     Filesystem = 2001,
     FilesystemWithPath = 2004,
     Http = 2002,
+    Web = 2005,
     Shell = 2003,
     Manifest = 3000,
     Validation = 3001,
@@ -25,6 +28,17 @@ pub enum ExtensionErrorCode {
     Installation = 5000,
 }
 
+/// Serialized representation of ExtensionError for TypeScript
+#[derive(Debug, Clone, serde::Serialize, TS)]
+#[ts(export)]
+pub struct SerializedExtensionError {
+    pub code: u16,
+    #[serde(rename = "type")]
+    pub error_type: String,
+    pub message: String,
+    pub extension_id: Option<String>,
+}
+
 impl serde::Serialize for ExtensionErrorCode {
     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
     where
@@ -70,6 +84,9 @@ pub enum ExtensionError {
     #[error("HTTP request failed: {reason}")]
     Http { reason: String },
 
+    #[error("Web request failed: {reason}")]
+    WebError { reason: String },
+
     #[error("Shell command failed: {reason}")]
     Shell {
         reason: String,
@@ -118,6 +135,7 @@ impl ExtensionError {
             ExtensionError::Filesystem { .. } => ExtensionErrorCode::Filesystem,
             ExtensionError::FilesystemWithPath { .. } => ExtensionErrorCode::FilesystemWithPath,
             ExtensionError::Http { .. } => ExtensionErrorCode::Http,
+            ExtensionError::WebError { .. } => ExtensionErrorCode::Web,
             ExtensionError::Shell { .. } => ExtensionErrorCode::Shell,
             ExtensionError::ManifestError { .. } => ExtensionErrorCode::Manifest,
             ExtensionError::ValidationError { .. } => ExtensionErrorCode::Validation,

src-tauri/src/extension/mod.rs

@@ -13,6 +13,10 @@ pub mod database;
 pub mod error;
 pub mod filesystem;
 pub mod permissions;
+pub mod web;
+
+#[cfg(not(any(target_os = "android", target_os = "ios")))]
+pub mod webview;
 
 #[tauri::command]
 pub fn get_extension_info(
@@ -428,3 +432,85 @@ pub fn get_all_dev_extensions(
 
     Ok(extensions)
 }
+
+// ============================================================================
+// WebviewWindow Commands (Desktop only)
+// ============================================================================
+
+#[cfg(not(any(target_os = "android", target_os = "ios")))]
+#[tauri::command]
+pub fn open_extension_webview_window(
+    app_handle: AppHandle,
+    state: State<'_, AppState>,
+    extension_id: String,
+    title: String,
+    width: f64,
+    height: f64,
+    x: Option<f64>,
+    y: Option<f64>,
+) -> Result<String, ExtensionError> {
+    eprintln!("[open_extension_webview_window] Received extension_id: {}", extension_id);
+    // Returns the window_id (generated UUID without dashes)
+    state.extension_webview_manager.open_extension_window(
+        &app_handle,
+        &state.extension_manager,
+        extension_id,
+        title,
+        width,
+        height,
+        x,
+        y,
+    )
+}
+
+#[cfg(not(any(target_os = "android", target_os = "ios")))]
+#[tauri::command]
+pub fn close_extension_webview_window(
+    app_handle: AppHandle,
+    state: State<'_, AppState>,
+    window_id: String,
+) -> Result<(), ExtensionError> {
+    state
+        .extension_webview_manager
+        .close_extension_window(&app_handle, &window_id)
+}
+
+#[cfg(not(any(target_os = "android", target_os = "ios")))]
+#[tauri::command]
+pub fn focus_extension_webview_window(
+    app_handle: AppHandle,
+    state: State<'_, AppState>,
+    window_id: String,
+) -> Result<(), ExtensionError> {
+    state
+        .extension_webview_manager
+        .focus_extension_window(&app_handle, &window_id)
+}
+
+#[cfg(not(any(target_os = "android", target_os = "ios")))]
+#[tauri::command]
+pub fn update_extension_webview_window_position(
+    app_handle: AppHandle,
+    state: State<'_, AppState>,
+    window_id: String,
+    x: f64,
+    y: f64,
+) -> Result<(), ExtensionError> {
+    state
+        .extension_webview_manager
+        .update_extension_window_position(&app_handle, &window_id, x, y)
+}
+
+#[cfg(not(any(target_os = "android", target_os = "ios")))]
+#[tauri::command]
+pub fn update_extension_webview_window_size(
+    app_handle: AppHandle,
+    state: State<'_, AppState>,
+    window_id: String,
+    width: f64,
+    height: f64,
+) -> Result<(), ExtensionError> {
+    state
+        .extension_webview_manager
+        .update_extension_window_size(&app_handle, &window_id, width, height)
+}

src-tauri/src/extension/permissions/check.rs

@@ -0,0 +1,65 @@
+// src-tauri/src/extension/permissions/check.rs
+
+use crate::extension::error::ExtensionError;
+use crate::extension::permissions::manager::PermissionManager;
+use crate::AppState;
+use std::path::Path;
+use tauri::State;
+
+#[tauri::command]
+pub async fn check_web_permission(
+    extension_id: String,
+    url: String,
+    state: State<'_, AppState>,
+) -> Result<(), ExtensionError> {
+    PermissionManager::check_web_permission(&state, &extension_id, &url).await
+}
+
+#[tauri::command]
+pub async fn check_database_permission(
+    extension_id: String,
+    resource: String,
+    operation: String,
+    state: State<'_, AppState>,
+) -> Result<(), ExtensionError> {
+    let action = match operation.as_str() {
+        "read" => crate::extension::permissions::types::Action::Database(
+            crate::extension::permissions::types::DbAction::Read,
+        ),
+        "write" => crate::extension::permissions::types::Action::Database(
+            crate::extension::permissions::types::DbAction::ReadWrite,
+        ),
+        _ => {
+            return Err(ExtensionError::ValidationError {
+                reason: format!("Invalid database operation: {}", operation),
+            })
+        }
+    };
+
+    PermissionManager::check_database_permission(&state, &extension_id, action, &resource).await
+}
+
+#[tauri::command]
+pub async fn check_filesystem_permission(
+    extension_id: String,
+    path: String,
+    operation: String,
+    state: State<'_, AppState>,
+) -> Result<(), ExtensionError> {
+    let action = match operation.as_str() {
+        "read" => crate::extension::permissions::types::Action::Filesystem(
+            crate::extension::permissions::types::FsAction::Read,
+        ),
+        "write" => crate::extension::permissions::types::Action::Filesystem(
+            crate::extension::permissions::types::FsAction::ReadWrite,
+        ),
+        _ => {
+            return Err(ExtensionError::ValidationError {
+                reason: format!("Invalid filesystem operation: {}", operation),
+            })
+        }
+    };
+
+    let file_path = Path::new(&path);
+    PermissionManager::check_filesystem_permission(&state, &extension_id, action, file_path).await
+}

src-tauri/src/extension/permissions/manager.rs

@@ -2,12 +2,14 @@ use crate::table_names::TABLE_EXTENSION_PERMISSIONS;
 use crate::AppState;
 use crate::database::core::with_connection;
 use crate::database::error::DatabaseError;
+use crate::extension::core::types::ExtensionSource;
 use crate::extension::database::executor::SqlExecutor;
 use crate::extension::error::ExtensionError;
-use crate::extension::permissions::types::{Action, ExtensionPermission, PermissionStatus, ResourceType};
+use crate::extension::permissions::types::{Action, ExtensionPermission, PermissionConstraints, PermissionStatus, ResourceType};
 use tauri::State;
 use crate::database::generated::HaexExtensionPermissions;
 use rusqlite::params;
+use std::path::Path;
 
 pub struct PermissionManager;
 
@@ -245,7 +247,97 @@ impl PermissionManager {
         Ok(())
     }
 
-/*     /// Prüft Dateisystem-Berechtigungen
+    /// Prüft Web-Berechtigungen für Requests
+    /// Method/operation is not checked - only protocol, domain, port, and path
+    pub async fn check_web_permission(
+        app_state: &State<'_, AppState>,
+        extension_id: &str,
+        url: &str,
+    ) -> Result<(), ExtensionError> {
+        // Load permissions - for dev extensions, get from manifest; for production, from database
+        let permissions = if let Some(extension) = app_state.extension_manager.get_extension(extension_id) {
+            match &extension.source {
+                ExtensionSource::Development { .. } => {
+                    // Dev extension - get web permissions from manifest
+                    extension.manifest.permissions
+                        .to_internal_permissions(extension_id)
+                        .into_iter()
+                        .filter(|p| p.resource_type == ResourceType::Web)
+                        .map(|mut p| {
+                            // Dev extensions have all permissions granted by default
+                            p.status = PermissionStatus::Granted;
+                            p
+                        })
+                        .collect()
+                }
+                ExtensionSource::Production { .. } => {
+                    // Production extension - load from database
+                    with_connection(&app_state.db, |conn| {
+                        let sql = format!(
+                            "SELECT * FROM {TABLE_EXTENSION_PERMISSIONS} WHERE extension_id = ? AND resource_type = 'web'"
+                        );
+                        let mut stmt = conn.prepare(&sql).map_err(DatabaseError::from)?;
+
+                        let perms_iter = stmt.query_map(params![extension_id], |row| {
+                            crate::database::generated::HaexExtensionPermissions::from_row(row)
+                        })?;
+
+                        let permissions: Vec<ExtensionPermission> = perms_iter
+                            .filter_map(Result::ok)
+                            .map(Into::into)
+                            .collect();
+
+                        Ok(permissions)
+                    })?
+                }
+            }
+        } else {
+            // Extension not found - deny
+            return Err(ExtensionError::ValidationError {
+                reason: format!("Extension not found: {}", extension_id),
+            });
+        };
+
+        let url_parsed = url::Url::parse(url).map_err(|e| ExtensionError::ValidationError {
+            reason: format!("Invalid URL: {}", e),
+        })?;
+
+        let domain = url_parsed.host_str().ok_or_else(|| ExtensionError::ValidationError {
+            reason: "URL does not contain a valid host".to_string(),
+        })?;
+
+        let has_permission = permissions
+            .iter()
+            .filter(|perm| perm.status == PermissionStatus::Granted)
+            .any(|perm| {
+                // Check if target matches the URL
+                let url_matches = if perm.target == "*" {
+                    // Wildcard matches everything
+                    true
+                } else if perm.target.contains("://") {
+                    // URL pattern matching (with protocol and optional path)
+                    Self::matches_url_pattern(&perm.target, url)
+                } else {
+                    // Domain-only matching (legacy behavior)
+                    perm.target == domain || domain.ends_with(&format!(".{}", perm.target))
+                };
+
+                // Return the URL match result (no method checking)
+                url_matches
+            });
+
+        if !has_permission {
+            return Err(ExtensionError::permission_denied(
+                extension_id,
+                "web request",
+                url,
+            ));
+        }
+
+        Ok(())
+    }
+
+    /// Prüft Dateisystem-Berechtigungen
     pub async fn check_filesystem_permission(
         app_state: &State<'_, AppState>,
         extension_id: &str,
@@ -293,56 +385,6 @@ impl PermissionManager {
         Ok(())
     }
 
-    /// Prüft HTTP-Berechtigungen
-    pub async fn check_http_permission(
-        app_state: &State<'_, AppState>,
-        extension_id: &str,
-        method: &str,
-        url: &str,
-    ) -> Result<(), ExtensionError> {
-        let permissions = Self::get_permissions(app_state, extension_id).await?;
-
-        let url_parsed = Url::parse(url).map_err(|e| ExtensionError::ValidationError {
-            reason: format!("Invalid URL: {}", e),
-        })?;
-
-        let domain = url_parsed.host_str().unwrap_or("");
-
-        let has_permission = permissions
-            .iter()
-            .filter(|perm| perm.status == PermissionStatus::Granted)
-            .filter(|perm| perm.resource_type == ResourceType::Http)
-            .any(|perm| {
-                let domain_matches = perm.target == "*"
-                    || perm.target == domain
-                    || domain.ends_with(&format!(".{}", perm.target));
-
-                if !domain_matches {
-                    return false;
-                }
-
-                if let Some(PermissionConstraints::Http(constraints)) = &perm.constraints {
-                    if let Some(methods) = &constraints.methods {
-                        if !methods.iter().any(|m| m.eq_ignore_ascii_case(method)) {
-                            return false;
-                        }
-                    }
-                }
-
-                true
-            });
-
-        if !has_permission {
-            return Err(ExtensionError::permission_denied(
-                extension_id,
-                method,
-                &format!("HTTP request to '{}'", url),
-            ));
-        }
-
-        Ok(())
-    }
-
     /// Prüft Shell-Berechtigungen
     pub async fn check_shell_permission(
         app_state: &State<'_, AppState>,
@@ -405,12 +447,12 @@ impl PermissionManager {
 
         Ok(())
     }
- */
+
     // Helper-Methoden - müssen DatabaseError statt ExtensionError zurückgeben
     pub fn parse_resource_type(s: &str) -> Result<ResourceType, DatabaseError> {
         match s {
             "fs" => Ok(ResourceType::Fs),
-            "http" => Ok(ResourceType::Http),
+            "web" => Ok(ResourceType::Web),
             "db" => Ok(ResourceType::Db),
             "shell" => Ok(ResourceType::Shell),
             _ => Err(DatabaseError::SerializationError {
@@ -441,6 +483,114 @@ impl PermissionManager {
         pattern == path || pattern == "*"
     }
 
+    /// Matches a URL against a URL pattern
+    /// Supports:
+    /// - Path wildcards: "https://domain.com/*"
+    /// - Subdomain wildcards: "https://*.domain.com/*"
+    fn matches_url_pattern(pattern: &str, url: &str) -> bool {
+        // Parse the actual URL
+        let Ok(url_parsed) = url::Url::parse(url) else {
+            return false;
+        };
+
+        // Check if pattern contains subdomain wildcard
+        let has_subdomain_wildcard = pattern.contains("://*.") || pattern.starts_with("*.");
+
+        if has_subdomain_wildcard {
+            // Extract components for wildcard matching
+            // Pattern: "https://*.example.com/*"
+
+            // Get protocol from pattern
+            let protocol_end = pattern.find("://").unwrap_or(0);
+            let pattern_protocol = if protocol_end > 0 {
+                &pattern[..protocol_end]
+            } else {
+                ""
+            };
+
+            // Protocol must match if specified
+            if !pattern_protocol.is_empty() && pattern_protocol != url_parsed.scheme() {
+                return false;
+            }
+
+            // Extract the domain pattern (after *.  )
+            let domain_start = if pattern.contains("://*.") {
+                pattern.find("://*.").unwrap() + 5 // length of "://.*"
+            } else if pattern.starts_with("*.") {
+                2 // length of "*."
+            } else {
+                return false;
+            };
+
+            // Find where the domain pattern ends (at / or end of string)
+            let domain_pattern_end = pattern[domain_start..].find('/').map(|i| domain_start + i).unwrap_or(pattern.len());
+            let domain_pattern = &pattern[domain_start..domain_pattern_end];
+
+            // Check if the URL's host ends with the domain pattern
+            let Some(url_host) = url_parsed.host_str() else {
+                return false;
+            };
+
+            // Match: *.example.com should match subdomain.example.com but not example.com
+            // Also match: exact domain if no subdomain wildcard prefix
+            if !url_host.ends_with(domain_pattern) && url_host != domain_pattern {
+                return false;
+            }
+
+            // For subdomain wildcard, ensure there's actually a subdomain
+            if pattern.contains("*.") && url_host == domain_pattern {
+                return false; // *.example.com should NOT match example.com
+            }
+
+            // Check path wildcard if present
+            if pattern.contains("/*") {
+                // Any path is allowed
+                return true;
+            }
+
+            // Check exact path if no wildcard
+            let pattern_path_start = domain_pattern_end;
+            if pattern_path_start < pattern.len() {
+                let pattern_path = &pattern[pattern_path_start..];
+                return url_parsed.path() == pattern_path;
+            }
+
+            return true;
+        }
+
+        // No subdomain wildcard - parse as full URL
+        let Ok(pattern_url) = url::Url::parse(pattern) else {
+            return false;
+        };
+
+        // Protocol must match
+        if pattern_url.scheme() != url_parsed.scheme() {
+            return false;
+        }
+
+        // Host must match
+        if pattern_url.host_str() != url_parsed.host_str() {
+            return false;
+        }
+
+        // Port must match (if specified)
+        if pattern_url.port() != url_parsed.port() {
+            return false;
+        }
+
+        // Path matching with wildcard support
+        if pattern.contains("/*") {
+            // Extract the base path before the wildcard
+            if let Some(wildcard_pos) = pattern.find("/*") {
+                let pattern_before_wildcard = &pattern[..wildcard_pos];
+                return url.starts_with(pattern_before_wildcard);
+            }
+        }
+
+        // Exact path match (no wildcard)
+        pattern_url.path() == url_parsed.path()
+    }
+
     
 
 }

src-tauri/src/extension/permissions/mod.rs

@@ -1,3 +1,4 @@
+pub mod check;
 pub mod manager;
 pub mod types;
 pub mod validator;

src-tauri/src/extension/permissions/types.rs

@@ -86,11 +86,11 @@ impl FromStr for FsAction {
     }
 }
 
-/// Definiert Aktionen (HTTP-Methoden), die auf HTTP-Anfragen angewendet werden können.
+/// Definiert Aktionen (HTTP-Methoden), die auf Web-Anfragen angewendet werden können.
 #[derive(Debug, Clone, PartialEq, Serialize, Deserialize, TS)]
 #[serde(rename_all = "UPPERCASE")]
 #[ts(export)]
-pub enum HttpAction {
+pub enum WebAction {
     Get,
     Post,
     Put,
@@ -100,20 +100,20 @@ pub enum HttpAction {
     All,
 }
 
-impl FromStr for HttpAction {
+impl FromStr for WebAction {
     type Err = ExtensionError;
 
     fn from_str(s: &str) -> Result<Self, Self::Err> {
         match s.to_uppercase().as_str() {
-            "GET" => Ok(HttpAction::Get),
+            "GET" => Ok(WebAction::Get),
-            "POST" => Ok(HttpAction::Post),
+            "POST" => Ok(WebAction::Post),
-            "PUT" => Ok(HttpAction::Put),
+            "PUT" => Ok(WebAction::Put),
-            "PATCH" => Ok(HttpAction::Patch),
+            "PATCH" => Ok(WebAction::Patch),
-            "DELETE" => Ok(HttpAction::Delete),
+            "DELETE" => Ok(WebAction::Delete),
-            "*" => Ok(HttpAction::All),
+            "*" => Ok(WebAction::All),
             _ => Err(ExtensionError::InvalidActionString {
                 input: s.to_string(),
-                resource_type: "http".to_string(),
+                resource_type: "web".to_string(),
             }),
         }
     }
@@ -149,7 +149,7 @@ impl FromStr for ShellAction {
 pub enum Action {
     Database(DbAction),
     Filesystem(FsAction),
-    Http(HttpAction),
+    Web(WebAction),
     Shell(ShellAction),
 }
 
@@ -173,7 +173,7 @@ pub struct ExtensionPermission {
 #[ts(export)]
 pub enum ResourceType {
     Fs,
-    Http,
+    Web,
     Db,
     Shell,
 }
@@ -195,7 +195,7 @@ pub enum PermissionStatus {
 pub enum PermissionConstraints {
     Database(DbConstraints),
     Filesystem(FsConstraints),
-    Http(HttpConstraints),
+    Web(WebConstraints),
     Shell(ShellConstraints),
 }
 
@@ -223,7 +223,7 @@ pub struct FsConstraints {
 
 #[derive(Serialize, Deserialize, Clone, Debug, Default, TS)]
 #[ts(export)]
-pub struct HttpConstraints {
+pub struct WebConstraints {
     #[serde(skip_serializing_if = "Option::is_none")]
     pub methods: Option<Vec<String>>,
     #[serde(skip_serializing_if = "Option::is_none")]
@@ -254,7 +254,7 @@ impl ResourceType {
     pub fn as_str(&self) -> &str {
         match self {
             ResourceType::Fs => "fs",
-            ResourceType::Http => "http",
+            ResourceType::Web => "web",
             ResourceType::Db => "db",
             ResourceType::Shell => "shell",
         }
@@ -263,7 +263,7 @@ impl ResourceType {
     pub fn from_str(s: &str) -> Result<Self, ExtensionError> {
         match s {
             "fs" => Ok(ResourceType::Fs),
-            "http" => Ok(ResourceType::Http),
+            "web" => Ok(ResourceType::Web),
             "db" => Ok(ResourceType::Db),
             "shell" => Ok(ResourceType::Shell),
             _ => Err(ExtensionError::ValidationError {
@@ -284,7 +284,7 @@ impl Action {
                 .unwrap_or_default()
                 .trim_matches('"')
                 .to_string(),
-            Action::Http(action) => serde_json::to_string(action)
+            Action::Web(action) => serde_json::to_string(action)
                 .unwrap_or_default()
                 .trim_matches('"')
                 .to_string(),
@@ -299,15 +299,15 @@ impl Action {
         match resource_type {
             ResourceType::Db => Ok(Action::Database(DbAction::from_str(s)?)),
             ResourceType::Fs => Ok(Action::Filesystem(FsAction::from_str(s)?)),
-            ResourceType::Http => {
+            ResourceType::Web => {
-                let action: HttpAction =
+                let action: WebAction =
                     serde_json::from_str(&format!("\"{s}\"")).map_err(|_| {
                         ExtensionError::InvalidActionString {
                             input: s.to_string(),
-                            resource_type: "http".to_string(),
+                            resource_type: "web".to_string(),
                         }
                     })?;
-                Ok(Action::Http(action))
+                Ok(Action::Web(action))
             }
             ResourceType::Shell => Ok(Action::Shell(ShellAction::from_str(s)?)),
         }

src-tauri/src/extension/web/mod.rs

@@ -0,0 +1,208 @@
+// src-tauri/src/extension/web/mod.rs
+
+use crate::extension::error::ExtensionError;
+use crate::AppState;
+use base64::{engine::general_purpose::STANDARD, Engine as _};
+use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
+use std::time::Duration;
+use tauri::State;
+use tauri_plugin_http::reqwest;
+
+/// Request structure matching the SDK's WebRequestOptions
+#[derive(Debug, Deserialize)]
+pub struct WebFetchRequest {
+    pub url: String,
+    #[serde(default)]
+    pub method: Option<String>,
+    #[serde(default)]
+    pub headers: Option<HashMap<String, String>>,
+    #[serde(default)]
+    pub body: Option<String>, // Base64 encoded
+    #[serde(default)]
+    pub timeout: Option<u64>, // milliseconds
+}
+
+/// Response structure matching the SDK's WebResponse
+#[derive(Debug, Serialize)]
+pub struct WebFetchResponse {
+    pub status: u16,
+    pub status_text: String,
+    pub headers: HashMap<String, String>,
+    pub body: String, // Base64 encoded
+    pub url: String,
+}
+
+#[tauri::command]
+pub async fn extension_web_open(
+    url: String,
+    public_key: String,
+    name: String,
+    state: State<'_, AppState>,
+) -> Result<(), ExtensionError> {
+    // Get extension to validate it exists
+    let extension = state
+        .extension_manager
+        .get_extension_by_public_key_and_name(&public_key, &name)?
+        .ok_or_else(|| ExtensionError::NotFound {
+            public_key: public_key.clone(),
+            name: name.clone(),
+        })?;
+
+    // Validate URL format
+    let parsed_url = url::Url::parse(&url).map_err(|e| ExtensionError::WebError {
+        reason: format!("Invalid URL: {}", e),
+    })?;
+
+    // Only allow http and https URLs
+    let scheme = parsed_url.scheme();
+    if scheme != "http" && scheme != "https" {
+        return Err(ExtensionError::WebError {
+            reason: format!("Unsupported URL scheme: {}. Only http and https are allowed.", scheme),
+        });
+    }
+
+    // Check web permissions
+    crate::extension::permissions::manager::PermissionManager::check_web_permission(
+        &state,
+        &extension.id,
+        &url,
+    )
+    .await?;
+
+    // Open URL in default browser using tauri-plugin-opener
+    tauri_plugin_opener::open_url(&url, None::<&str>).map_err(|e| ExtensionError::WebError {
+        reason: format!("Failed to open URL in browser: {}", e),
+    })?;
+
+    Ok(())
+}
+
+#[tauri::command]
+pub async fn extension_web_fetch(
+    url: String,
+    method: Option<String>,
+    headers: Option<HashMap<String, String>>,
+    body: Option<String>,
+    timeout: Option<u64>,
+    public_key: String,
+    name: String,
+    state: State<'_, AppState>,
+) -> Result<WebFetchResponse, ExtensionError> {
+    // Get extension to validate it exists
+    let extension = state
+        .extension_manager
+        .get_extension_by_public_key_and_name(&public_key, &name)?
+        .ok_or_else(|| ExtensionError::NotFound {
+            public_key: public_key.clone(),
+            name: name.clone(),
+        })?;
+
+    let method_str = method.as_deref().unwrap_or("GET");
+
+    // Check web permissions before making request
+    crate::extension::permissions::manager::PermissionManager::check_web_permission(
+        &state,
+        &extension.id,
+        &url,
+    )
+    .await?;
+
+    let request = WebFetchRequest {
+        url,
+        method: Some(method_str.to_string()),
+        headers,
+        body,
+        timeout,
+    };
+
+    fetch_web_request(request).await
+}
+
+/// Performs the actual HTTP request without CORS restrictions
+async fn fetch_web_request(request: WebFetchRequest) -> Result<WebFetchResponse, ExtensionError> {
+    let method_str = request.method.as_deref().unwrap_or("GET");
+    let timeout_ms = request.timeout.unwrap_or(30000);
+
+    // Build reqwest client with timeout
+    let client = reqwest::Client::builder()
+        .timeout(Duration::from_millis(timeout_ms))
+        .build()
+        .map_err(|e| ExtensionError::WebError {
+            reason: format!("Failed to create HTTP client: {}", e),
+        })?;
+
+    // Build request
+    let mut req_builder = match method_str.to_uppercase().as_str() {
+        "GET" => client.get(&request.url),
+        "POST" => client.post(&request.url),
+        "PUT" => client.put(&request.url),
+        "DELETE" => client.delete(&request.url),
+        "PATCH" => client.patch(&request.url),
+        "HEAD" => client.head(&request.url),
+        "OPTIONS" => client.request(reqwest::Method::OPTIONS, &request.url),
+        _ => {
+            return Err(ExtensionError::WebError {
+                reason: format!("Unsupported HTTP method: {}", method_str),
+            })
+        }
+    };
+
+    // Add headers
+    if let Some(headers) = request.headers {
+        for (key, value) in headers {
+            req_builder = req_builder.header(key, value);
+        }
+    }
+
+    // Add body if present (decode from base64)
+    if let Some(body_base64) = request.body {
+        let body_bytes = STANDARD.decode(&body_base64).map_err(|e| {
+            ExtensionError::WebError {
+                reason: format!("Failed to decode request body from base64: {}", e),
+            }
+        })?;
+        req_builder = req_builder.body(body_bytes);
+    }
+
+    // Execute request
+    let response = req_builder.send().await.map_err(|e| {
+        if e.is_timeout() {
+            ExtensionError::WebError {
+                reason: format!("Request timeout after {}ms", timeout_ms),
+            }
+        } else {
+            ExtensionError::WebError {
+                reason: format!("Request failed: {}", e),
+            }
+        }
+    })?;
+
+    // Extract response data
+    let status = response.status().as_u16();
+    let status_text = response.status().canonical_reason().unwrap_or("").to_string();
+    let final_url = response.url().to_string();
+
+    // Extract headers
+    let mut response_headers = HashMap::new();
+    for (key, value) in response.headers() {
+        if let Ok(value_str) = value.to_str() {
+            response_headers.insert(key.to_string(), value_str.to_string());
+        }
+    }
+
+    // Read body and encode to base64
+    let body_bytes = response.bytes().await.map_err(|e| ExtensionError::WebError {
+        reason: format!("Failed to read response body: {}", e),
+    })?;
+
+    let body_base64 = STANDARD.encode(&body_bytes);
+
+    Ok(WebFetchResponse {
+        status,
+        status_text,
+        headers: response_headers,
+        body: body_base64,
+        url: final_url,
+    })
+}

src-tauri/src/extension/webview/database.rs

@@ -0,0 +1,66 @@
+use crate::extension::database::{extension_sql_execute, extension_sql_select};
+use crate::extension::error::ExtensionError;
+use crate::AppState;
+use tauri::{State, WebviewWindow};
+
+use super::helpers::get_extension_id;
+
+#[tauri::command]
+pub async fn webview_extension_db_query(
+    window: WebviewWindow,
+    state: State<'_, AppState>,
+    query: String,
+    params: Vec<serde_json::Value>,
+) -> Result<serde_json::Value, ExtensionError> {
+    let extension_id = get_extension_id(&window, &state)?;
+
+    // Get extension to retrieve public_key and name for existing database functions
+    let extension = state
+        .extension_manager
+        .get_extension(&extension_id)
+        .ok_or_else(|| ExtensionError::ValidationError {
+            reason: format!("Extension with ID {} not found", extension_id),
+        })?;
+
+    let rows = extension_sql_select(&query, params, extension.manifest.public_key.clone(), extension.manifest.name.clone(), state)
+        .await
+        .map_err(|e| ExtensionError::ValidationError {
+            reason: format!("Database query failed: {}", e),
+        })?;
+
+    Ok(serde_json::json!({
+        "rows": rows,
+        "rowsAffected": 0,
+        "lastInsertId": null
+    }))
+}
+
+#[tauri::command]
+pub async fn webview_extension_db_execute(
+    window: WebviewWindow,
+    state: State<'_, AppState>,
+    query: String,
+    params: Vec<serde_json::Value>,
+) -> Result<serde_json::Value, ExtensionError> {
+    let extension_id = get_extension_id(&window, &state)?;
+
+    // Get extension to retrieve public_key and name for existing database functions
+    let extension = state
+        .extension_manager
+        .get_extension(&extension_id)
+        .ok_or_else(|| ExtensionError::ValidationError {
+            reason: format!("Extension with ID {} not found", extension_id),
+        })?;
+
+    let rows = extension_sql_execute(&query, params, extension.manifest.public_key.clone(), extension.manifest.name.clone(), state)
+        .await
+        .map_err(|e| ExtensionError::ValidationError {
+            reason: format!("Database execute failed: {}", e),
+        })?;
+
+    Ok(serde_json::json!({
+        "rows": rows,
+        "rowsAffected": rows.len(),
+        "lastInsertId": null
+    }))
+}

src-tauri/src/extension/webview/filesystem.rs

@@ -0,0 +1,113 @@
+use crate::extension::error::ExtensionError;
+use crate::AppState;
+use serde::{Deserialize, Serialize};
+use tauri::{State, WebviewWindow};
+use tauri_plugin_dialog::DialogExt;
+use tauri_plugin_opener::OpenerExt;
+
+#[derive(Debug, Clone, Deserialize)]
+pub struct FileFilter {
+    pub name: String,
+    pub extensions: Vec<String>,
+}
+
+#[derive(Debug, Clone, Serialize)]
+pub struct SaveFileResult {
+    pub path: String,
+    pub success: bool,
+}
+
+#[tauri::command]
+pub async fn webview_extension_fs_save_file(
+    window: WebviewWindow,
+    _state: State<'_, AppState>,
+    data: Vec<u8>,
+    default_path: Option<String>,
+    title: Option<String>,
+    filters: Option<Vec<FileFilter>>,
+) -> Result<Option<SaveFileResult>, ExtensionError> {
+    eprintln!("[Filesystem] save_file called with {} bytes", data.len());
+    eprintln!("[Filesystem] save_file default_path: {:?}", default_path);
+    eprintln!("[Filesystem] save_file first 10 bytes: {:?}", &data[..data.len().min(10)]);
+
+    // Build save dialog
+    let mut dialog = window.dialog().file();
+
+    if let Some(path) = default_path {
+        dialog = dialog.set_file_name(&path);
+    }
+
+    if let Some(t) = title {
+        dialog = dialog.set_title(&t);
+    }
+
+    if let Some(f) = filters {
+        for filter in f {
+            let ext_refs: Vec<&str> = filter.extensions.iter().map(|s| s.as_str()).collect();
+            dialog = dialog.add_filter(&filter.name, &ext_refs);
+        }
+    }
+
+    // Show dialog (blocking_save_file is safe in async commands)
+    eprintln!("[Filesystem] Showing save dialog...");
+    let file_path = dialog.blocking_save_file();
+
+    if let Some(file_path) = file_path {
+        // Convert FilePath to PathBuf
+        let path_buf = file_path.as_path().ok_or_else(|| ExtensionError::ValidationError {
+            reason: "Failed to get file path".to_string(),
+        })?;
+
+        eprintln!("[Filesystem] User selected path: {}", path_buf.display());
+        eprintln!("[Filesystem] Writing {} bytes to file...", data.len());
+
+        // Write file using std::fs
+        std::fs::write(path_buf, &data)
+            .map_err(|e| {
+                eprintln!("[Filesystem] ERROR writing file: {}", e);
+                ExtensionError::ValidationError {
+                    reason: format!("Failed to write file: {}", e),
+                }
+            })?;
+
+        eprintln!("[Filesystem] File written successfully");
+
+        Ok(Some(SaveFileResult {
+            path: path_buf.to_string_lossy().to_string(),
+            success: true,
+        }))
+    } else {
+        eprintln!("[Filesystem] User cancelled");
+        // User cancelled
+        Ok(None)
+    }
+}
+
+#[tauri::command]
+pub async fn webview_extension_fs_open_file(
+    window: WebviewWindow,
+    _state: State<'_, AppState>,
+    data: Vec<u8>,
+    file_name: String,
+) -> Result<serde_json::Value, ExtensionError> {
+    // Get temp directory
+    let temp_dir = std::env::temp_dir();
+    let temp_file_path = temp_dir.join(&file_name);
+
+    // Write file to temp directory using std::fs
+    std::fs::write(&temp_file_path, data)
+        .map_err(|e| ExtensionError::ValidationError {
+            reason: format!("Failed to write temp file: {}", e),
+        })?;
+
+    // Open file with system's default viewer
+    let path_str = temp_file_path.to_string_lossy().to_string();
+    window.opener().open_path(path_str, None::<String>)
+        .map_err(|e| ExtensionError::ValidationError {
+            reason: format!("Failed to open file: {}", e),
+        })?;
+
+    Ok(serde_json::json!({
+        "success": true
+    }))
+}

src-tauri/src/extension/webview/helpers.rs

@@ -0,0 +1,57 @@
+use crate::extension::core::protocol::ExtensionInfo;
+use crate::extension::error::ExtensionError;
+use crate::AppState;
+use tauri::{State, WebviewWindow};
+
+/// Get extension_id from window (SECURITY: window_id from Tauri, cannot be spoofed)
+pub fn get_extension_id(window: &WebviewWindow, state: &State<AppState>) -> Result<String, ExtensionError> {
+    let window_id = window.label();
+    eprintln!("[webview_api] Looking up extension_id for window: {}", window_id);
+
+    let windows = state
+        .extension_webview_manager
+        .windows
+        .lock()
+        .map_err(|e| ExtensionError::MutexPoisoned {
+            reason: e.to_string(),
+        })?;
+
+    eprintln!("[webview_api] HashMap contents: {:?}", *windows);
+
+    let extension_id = windows
+        .get(window_id)
+        .cloned()
+        .ok_or_else(|| ExtensionError::ValidationError {
+            reason: format!("Window {} is not registered as an extension window", window_id),
+        })?;
+
+    eprintln!("[webview_api] Found extension_id: {}", extension_id);
+    Ok(extension_id)
+}
+
+/// Get full extension info (public_key, name, version) from window
+pub fn get_extension_info_from_window(
+    window: &WebviewWindow,
+    state: &State<AppState>,
+) -> Result<ExtensionInfo, ExtensionError> {
+    let extension_id = get_extension_id(window, state)?;
+
+    // Get extension from ExtensionManager using the database UUID
+    let extension = state
+        .extension_manager
+        .get_extension(&extension_id)
+        .ok_or_else(|| ExtensionError::ValidationError {
+            reason: format!("Extension with ID {} not found", extension_id),
+        })?;
+
+    let version = match &extension.source {
+        crate::extension::core::types::ExtensionSource::Production { version, .. } => version.clone(),
+        crate::extension::core::types::ExtensionSource::Development { .. } => "dev".to_string(),
+    };
+
+    Ok(ExtensionInfo {
+        public_key: extension.manifest.public_key,
+        name: extension.manifest.name,
+        version,
+    })
+}

src-tauri/src/extension/webview/manager.rs

@@ -0,0 +1,333 @@
+use crate::event_names::EVENT_EXTENSION_WINDOW_CLOSED;
+use crate::extension::error::ExtensionError;
+use crate::extension::ExtensionManager;
+use std::collections::HashMap;
+use std::sync::{Arc, Mutex};
+use tauri::{AppHandle, Emitter, Manager, WebviewUrl, WebviewWindowBuilder};
+
+/// Verwaltet native WebviewWindows für Extensions (nur Desktop-Plattformen)
+pub struct ExtensionWebviewManager {
+    /// Map: window_id -> extension_id
+    /// Das window_id ist ein eindeutiger Identifier (Tauri-kompatibel, keine Bindestriche)
+    /// und wird gleichzeitig als Tauri WebviewWindow label verwendet
+    pub windows: Arc<Mutex<HashMap<String, String>>>,
+}
+
+impl ExtensionWebviewManager {
+    pub fn new() -> Self {
+        Self {
+            windows: Arc::new(Mutex::new(HashMap::new())),
+        }
+    }
+
+    /// Öffnet eine Extension in einem nativen WebviewWindow
+    ///
+    /// # Arguments
+    /// * `app_handle` - Tauri AppHandle
+    /// * `extension_manager` - Extension Manager für Zugriff auf Extension-Daten
+    /// * `extension_id` - ID der zu öffnenden Extension
+    /// * `title` - Fenstertitel
+    /// * `width` - Fensterbreite
+    /// * `height` - Fensterhöhe
+    /// * `x` - X-Position (optional)
+    /// * `y` - Y-Position (optional)
+    ///
+    /// # Returns
+    /// Das window_id des erstellten Fensters
+    pub fn open_extension_window(
+        &self,
+        app_handle: &AppHandle,
+        extension_manager: &ExtensionManager,
+        extension_id: String,
+        title: String,
+        width: f64,
+        height: f64,
+        x: Option<f64>,
+        y: Option<f64>,
+    ) -> Result<String, ExtensionError> {
+        // Extension aus Manager holen
+        let extension = extension_manager
+            .get_extension(&extension_id)
+            .ok_or_else(|| ExtensionError::NotFound {
+                public_key: "".to_string(),
+                name: extension_id.clone(),
+            })?;
+
+        // URL für Extension generieren (analog zum Frontend)
+        use crate::extension::core::types::ExtensionSource;
+        let url = match &extension.source {
+            ExtensionSource::Production { .. } => {
+                // Für Production Extensions: custom protocol
+                #[cfg(target_os = "android")]
+                let protocol = "http";
+                #[cfg(not(target_os = "android"))]
+                let protocol = "haex-extension";
+
+                // Extension Info Base64-codieren (wie im Frontend)
+                let extension_info = serde_json::json!({
+                    "publicKey": extension.manifest.public_key,
+                    "name": extension.manifest.name,
+                    "version": match &extension.source {
+                        ExtensionSource::Production { version, .. } => version,
+                        _ => "",
+                    }
+                });
+                let extension_info_str = serde_json::to_string(&extension_info)
+                    .map_err(|e| ExtensionError::ValidationError {
+                        reason: format!("Failed to serialize extension info: {}", e),
+                    })?;
+                let extension_info_base64 =
+                    base64::Engine::encode(&base64::engine::general_purpose::STANDARD, extension_info_str.as_bytes());
+
+                #[cfg(target_os = "android")]
+                let host = "haex-extension.localhost";
+                #[cfg(not(target_os = "android"))]
+                let host = "localhost";
+
+                let entry = extension.manifest.entry.as_deref().unwrap_or("index.html");
+                format!("{}://{}/{}/{}", protocol, host, extension_info_base64, entry)
+            }
+            ExtensionSource::Development { dev_server_url, .. } => {
+                // Für Dev Extensions: direkt Dev-Server URL
+                dev_server_url.clone()
+            }
+        };
+
+        // Eindeutige Window-ID generieren (wird auch als Tauri label verwendet, keine Bindestriche erlaubt)
+        let window_id = format!("ext_{}", uuid::Uuid::new_v4().simple());
+
+        eprintln!("Opening extension window: {} with URL: {}", window_id, url);
+
+        // WebviewWindow erstellen
+        let webview_url = WebviewUrl::External(url.parse().map_err(|e| {
+            ExtensionError::ValidationError {
+                reason: format!("Invalid URL: {}", e),
+            }
+        })?);
+
+        #[cfg(not(any(target_os = "android", target_os = "ios")))]
+        let mut builder = WebviewWindowBuilder::new(app_handle, &window_id, webview_url)
+            .title(&title)
+            .inner_size(width, height)
+            .decorations(true) // Native Decorations (Titlebar, etc.)
+            .resizable(true)
+            .skip_taskbar(false) // In Taskbar anzeigen
+            .center(); // Fenster zentrieren
+
+        #[cfg(any(target_os = "android", target_os = "ios"))]
+        let mut builder = WebviewWindowBuilder::new(app_handle, &window_id, webview_url)
+            .inner_size(width, height);
+
+        // Position setzen, falls angegeben (nur Desktop)
+        #[cfg(not(any(target_os = "android", target_os = "ios")))]
+        if let (Some(x_pos), Some(y_pos)) = (x, y) {
+            builder = builder.position(x_pos, y_pos);
+        }
+
+        // Fenster erstellen
+        let webview_window = builder.build().map_err(|e| ExtensionError::ValidationError {
+            reason: format!("Failed to create webview window: {}", e),
+        })?;
+
+        // Event-Listener für das Schließen des Fensters registrieren
+        let window_id_for_event = window_id.clone();
+        let app_handle_for_event = app_handle.clone();
+        let windows_for_event = self.windows.clone();
+
+        webview_window.on_window_event(move |event| {
+            if let tauri::WindowEvent::Destroyed = event {
+                eprintln!("WebviewWindow destroyed: {}", window_id_for_event);
+
+                // Registry cleanup
+                if let Ok(mut windows) = windows_for_event.lock() {
+                    windows.remove(&window_id_for_event);
+                }
+
+                // Emit event an Frontend, damit das Tracking aktualisiert wird
+                let _ = app_handle_for_event.emit(EVENT_EXTENSION_WINDOW_CLOSED, &window_id_for_event);
+            }
+        });
+
+        // In Registry speichern
+        let mut windows = self.windows.lock().map_err(|e| ExtensionError::MutexPoisoned {
+            reason: e.to_string(),
+        })?;
+        windows.insert(window_id.clone(), extension_id.clone());
+
+        eprintln!("Extension window opened successfully: {}", window_id);
+        Ok(window_id)
+    }
+
+    /// Schließt ein Extension-Fenster
+    pub fn close_extension_window(
+        &self,
+        app_handle: &AppHandle,
+        window_id: &str,
+    ) -> Result<(), ExtensionError> {
+        let mut windows = self.windows.lock().map_err(|e| ExtensionError::MutexPoisoned {
+            reason: e.to_string(),
+        })?;
+
+        if windows.remove(window_id).is_some() {
+            drop(windows); // Release lock before potentially blocking operation
+
+            // Webview Window schließen (nur Desktop)
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            if let Some(window) = app_handle.get_webview_window(window_id) {
+                window.close().map_err(|e| ExtensionError::ValidationError {
+                    reason: format!("Failed to close window: {}", e),
+                })?;
+            }
+            eprintln!("Extension window closed: {}", window_id);
+            Ok(())
+        } else {
+            Err(ExtensionError::NotFound {
+                public_key: "".to_string(),
+                name: window_id.to_string(),
+            })
+        }
+    }
+
+    /// Fokussiert ein Extension-Fenster
+    pub fn focus_extension_window(
+        &self,
+        app_handle: &AppHandle,
+        window_id: &str,
+    ) -> Result<(), ExtensionError> {
+        let windows = self.windows.lock().map_err(|e| ExtensionError::MutexPoisoned {
+            reason: e.to_string(),
+        })?;
+
+        let exists = windows.contains_key(window_id);
+        drop(windows); // Release lock
+
+        if exists {
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            if let Some(window) = app_handle.get_webview_window(window_id) {
+                window.set_focus().map_err(|e| ExtensionError::ValidationError {
+                    reason: format!("Failed to focus window: {}", e),
+                })?;
+                // Zusätzlich nach vorne bringen
+                window.set_always_on_top(true).ok();
+                window.set_always_on_top(false).ok();
+            }
+            Ok(())
+        } else {
+            Err(ExtensionError::NotFound {
+                public_key: "".to_string(),
+                name: window_id.to_string(),
+            })
+        }
+    }
+
+    /// Aktualisiert Position eines Extension-Fensters
+    pub fn update_extension_window_position(
+        &self,
+        app_handle: &AppHandle,
+        window_id: &str,
+        x: f64,
+        y: f64,
+    ) -> Result<(), ExtensionError> {
+        let windows = self.windows.lock().map_err(|e| ExtensionError::MutexPoisoned {
+            reason: e.to_string(),
+        })?;
+
+        let exists = windows.contains_key(window_id);
+        drop(windows); // Release lock
+
+        if exists {
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            if let Some(window) = app_handle.get_webview_window(window_id) {
+                use tauri::Position;
+                window
+                    .set_position(Position::Physical(tauri::PhysicalPosition {
+                        x: x as i32,
+                        y: y as i32,
+                    }))
+                    .map_err(|e| ExtensionError::ValidationError {
+                        reason: format!("Failed to set window position: {}", e),
+                    })?;
+            }
+            Ok(())
+        } else {
+            Err(ExtensionError::NotFound {
+                public_key: "".to_string(),
+                name: window_id.to_string(),
+            })
+        }
+    }
+
+    /// Aktualisiert Größe eines Extension-Fensters
+    pub fn update_extension_window_size(
+        &self,
+        app_handle: &AppHandle,
+        window_id: &str,
+        width: f64,
+        height: f64,
+    ) -> Result<(), ExtensionError> {
+        let windows = self.windows.lock().map_err(|e| ExtensionError::MutexPoisoned {
+            reason: e.to_string(),
+        })?;
+
+        let exists = windows.contains_key(window_id);
+        drop(windows); // Release lock
+
+        if exists {
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            if let Some(window) = app_handle.get_webview_window(window_id) {
+                use tauri::Size;
+                window
+                    .set_size(Size::Physical(tauri::PhysicalSize {
+                        width: width as u32,
+                        height: height as u32,
+                    }))
+                    .map_err(|e| ExtensionError::ValidationError {
+                        reason: format!("Failed to set window size: {}", e),
+                    })?;
+            }
+            Ok(())
+        } else {
+            Err(ExtensionError::NotFound {
+                public_key: "".to_string(),
+                name: window_id.to_string(),
+            })
+        }
+    }
+
+    /// Emits an event to all extension webview windows
+    pub fn emit_to_all_extensions<S: serde::Serialize + Clone>(
+        &self,
+        app_handle: &AppHandle,
+        event: &str,
+        payload: S,
+    ) -> Result<(), ExtensionError> {
+        let windows = self.windows.lock().map_err(|e| ExtensionError::MutexPoisoned {
+            reason: e.to_string(),
+        })?;
+
+        eprintln!("[Manager] Emitting event '{}' to {} webview windows", event, windows.len());
+
+        // Iterate over all window IDs
+        for window_id in windows.keys() {
+            eprintln!("[Manager] Trying to emit to window: {}", window_id);
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            if let Some(window) = app_handle.get_webview_window(window_id) {
+                // Emit event to this specific webview window
+                match window.emit(event, payload.clone()) {
+                    Ok(_) => eprintln!("[Manager] Successfully emitted event '{}' to window {}", event, window_id),
+                    Err(e) => eprintln!("[Manager] Failed to emit event {} to window {}: {}", event, window_id, e),
+                }
+            } else {
+                eprintln!("[Manager] Window not found: {}", window_id);
+            }
+        }
+
+        Ok(())
+    }
+}
+
+impl Default for ExtensionWebviewManager {
+    fn default() -> Self {
+        Self::new()
+    }
+}

src-tauri/src/extension/webview/mod.rs

@@ -0,0 +1,8 @@
+pub mod database;
+pub mod filesystem;
+pub mod helpers;
+pub mod manager;
+pub mod web;
+
+// Re-export manager types
+pub use manager::ExtensionWebviewManager;

src-tauri/src/extension/webview/web.rs

@@ -0,0 +1,266 @@
+use crate::extension::core::protocol::ExtensionInfo;
+use crate::extension::error::ExtensionError;
+use crate::extension::permissions::manager::PermissionManager;
+use crate::extension::permissions::types::{Action, DbAction, FsAction};
+use crate::AppState;
+use base64::Engine;
+use serde::{Deserialize, Serialize};
+use tauri::{State, WebviewWindow};
+use tauri_plugin_http::reqwest;
+
+use super::helpers::{get_extension_id, get_extension_info_from_window};
+
+// ============================================================================
+// Types for SDK communication
+// ============================================================================
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ApplicationContext {
+    pub theme: String,
+    pub locale: String,
+    pub platform: String,
+}
+
+// ============================================================================
+// Extension Info Command
+// ============================================================================
+
+#[tauri::command]
+pub fn webview_extension_get_info(
+    window: WebviewWindow,
+    state: State<'_, AppState>,
+) -> Result<ExtensionInfo, ExtensionError> {
+    get_extension_info_from_window(&window, &state)
+}
+
+// ============================================================================
+// Context API Commands
+// ============================================================================
+
+#[tauri::command]
+pub fn webview_extension_context_get(
+    state: State<'_, AppState>,
+) -> Result<ApplicationContext, ExtensionError> {
+    let context = state.context.lock().map_err(|e| ExtensionError::ValidationError {
+        reason: format!("Failed to lock context: {}", e),
+    })?;
+    Ok(context.clone())
+}
+
+#[tauri::command]
+pub fn webview_extension_context_set(
+    state: State<'_, AppState>,
+    context: ApplicationContext,
+) -> Result<(), ExtensionError> {
+    let mut current_context = state.context.lock().map_err(|e| ExtensionError::ValidationError {
+        reason: format!("Failed to lock context: {}", e),
+    })?;
+    *current_context = context;
+    Ok(())
+}
+
+// ============================================================================
+// Permission API Commands
+// ============================================================================
+
+#[tauri::command]
+pub async fn webview_extension_check_web_permission(
+    window: WebviewWindow,
+    state: State<'_, AppState>,
+    url: String,
+) -> Result<bool, ExtensionError> {
+    let extension_id = get_extension_id(&window, &state)?;
+
+    match PermissionManager::check_web_permission(&state, &extension_id, &url).await {
+        Ok(_) => Ok(true),
+        Err(_) => Ok(false),
+    }
+}
+
+#[tauri::command]
+pub async fn webview_extension_check_database_permission(
+    window: WebviewWindow,
+    state: State<'_, AppState>,
+    resource: String,
+    operation: String,
+) -> Result<bool, ExtensionError> {
+    let extension_id = get_extension_id(&window, &state)?;
+
+    let action = match operation.as_str() {
+        "read" => Action::Database(DbAction::Read),
+        "write" => Action::Database(DbAction::ReadWrite),
+        _ => return Ok(false),
+    };
+
+    match PermissionManager::check_database_permission(&state, &extension_id, action, &resource).await {
+        Ok(_) => Ok(true),
+        Err(_) => Ok(false),
+    }
+}
+
+#[tauri::command]
+pub async fn webview_extension_check_filesystem_permission(
+    window: WebviewWindow,
+    state: State<'_, AppState>,
+    path: String,
+    action_str: String,
+) -> Result<bool, ExtensionError> {
+    let extension_id = get_extension_id(&window, &state)?;
+
+    let action = match action_str.as_str() {
+        "read" => Action::Filesystem(FsAction::Read),
+        "write" => Action::Filesystem(FsAction::ReadWrite),
+        _ => return Ok(false),
+    };
+
+    let path_buf = std::path::Path::new(&path);
+    match PermissionManager::check_filesystem_permission(&state, &extension_id, action, path_buf).await {
+        Ok(_) => Ok(true),
+        Err(_) => Ok(false),
+    }
+}
+
+// ============================================================================
+// Web API Commands
+// ============================================================================
+
+#[tauri::command]
+pub async fn webview_extension_web_open(
+    window: WebviewWindow,
+    state: State<'_, AppState>,
+    url: String,
+) -> Result<(), ExtensionError> {
+    let extension_id = get_extension_id(&window, &state)?;
+
+    // Validate URL format
+    let parsed_url = url::Url::parse(&url).map_err(|e| ExtensionError::WebError {
+        reason: format!("Invalid URL: {}", e),
+    })?;
+
+    // Only allow http and https URLs
+    let scheme = parsed_url.scheme();
+    if scheme != "http" && scheme != "https" {
+        return Err(ExtensionError::WebError {
+            reason: format!("Unsupported URL scheme: {}. Only http and https are allowed.", scheme),
+        });
+    }
+
+    // Check web permissions
+    PermissionManager::check_web_permission(&state, &extension_id, &url).await?;
+
+    // Open URL in default browser using tauri-plugin-opener
+    tauri_plugin_opener::open_url(&url, None::<&str>).map_err(|e| ExtensionError::WebError {
+        reason: format!("Failed to open URL in browser: {}", e),
+    })?;
+
+    Ok(())
+}
+
+#[tauri::command]
+pub async fn webview_extension_web_request(
+    window: WebviewWindow,
+    state: State<'_, AppState>,
+    url: String,
+    method: Option<String>,
+    headers: Option<serde_json::Value>,
+    body: Option<String>,
+) -> Result<serde_json::Value, ExtensionError> {
+    let extension_id = get_extension_id(&window, &state)?;
+
+    // Check permission first
+    PermissionManager::check_web_permission(&state, &extension_id, &url).await?;
+
+    // Build request
+    let method = method.unwrap_or_else(|| "GET".to_string());
+
+    let client = reqwest::Client::new();
+    let mut request = match method.to_uppercase().as_str() {
+        "GET" => client.get(&url),
+        "POST" => client.post(&url),
+        "PUT" => client.put(&url),
+        "DELETE" => client.delete(&url),
+        "PATCH" => client.patch(&url),
+        _ => {
+            return Err(ExtensionError::ValidationError {
+                reason: format!("Unsupported HTTP method: {}", method),
+            })
+        }
+    };
+
+    // Add headers
+    if let Some(headers) = headers {
+        if let Some(headers_obj) = headers.as_object() {
+            for (key, value) in headers_obj {
+                if let Some(value_str) = value.as_str() {
+                    request = request.header(key, value_str);
+                }
+            }
+        }
+    }
+
+    // Add body
+    if let Some(body) = body {
+        request = request.body(body);
+    }
+
+    // Execute request
+    let response = request
+        .send()
+        .await
+        .map_err(|e| ExtensionError::ValidationError {
+            reason: format!("HTTP request failed: {}", e),
+        })?;
+
+    let status = response.status().as_u16();
+    let headers_map = response.headers().clone();
+
+    // Get response body as bytes
+    let body_bytes = response
+        .bytes()
+        .await
+        .map_err(|e| ExtensionError::ValidationError {
+            reason: format!("Failed to read response body: {}", e),
+        })?;
+
+    // Encode body as base64
+    let body_base64 = base64::Engine::encode(&base64::engine::general_purpose::STANDARD, &body_bytes);
+
+    // Convert headers to JSON
+    let mut headers_json = serde_json::Map::new();
+    for (key, value) in headers_map.iter() {
+        if let Ok(value_str) = value.to_str() {
+            headers_json.insert(
+                key.to_string(),
+                serde_json::Value::String(value_str.to_string()),
+            );
+        }
+    }
+
+    Ok(serde_json::json!({
+        "status": status,
+        "headers": headers_json,
+        "body": body_base64,
+        "ok": status >= 200 && status < 300
+    }))
+}
+
+/// Broadcasts an event to all extension webview windows
+#[tauri::command]
+pub async fn webview_extension_emit_to_all(
+    app_handle: tauri::AppHandle,
+    state: State<'_, AppState>,
+    event: String,
+    payload: serde_json::Value,
+) -> Result<(), ExtensionError> {
+    #[cfg(not(any(target_os = "android", target_os = "ios")))]
+    {
+        state.extension_webview_manager.emit_to_all_extensions(
+            &app_handle,
+            &event,
+            payload,
+        )?;
+    }
+
+    Ok(())
+}

src-tauri/src/lib.rs

@@ -1,7 +1,14 @@
 mod crdt;
 mod database;
 mod extension;
-use crate::{crdt::hlc::HlcService, database::DbConnection, extension::core::ExtensionManager};
+use crate::{
+    crdt::hlc::HlcService,
+    database::DbConnection,
+    extension::core::ExtensionManager,
+};
+
+#[cfg(not(any(target_os = "android", target_os = "ios")))]
+use crate::extension::webview::ExtensionWebviewManager;
 use std::sync::{Arc, Mutex};
 use tauri::Manager;
 
@@ -9,10 +16,17 @@ pub mod table_names {
     include!(concat!(env!("OUT_DIR"), "/tableNames.rs"));
 }
 
+pub mod event_names {
+    include!(concat!(env!("OUT_DIR"), "/eventNames.rs"));
+}
+
 pub struct AppState {
     pub db: DbConnection,
     pub hlc: Mutex<HlcService>,
     pub extension_manager: ExtensionManager,
+    #[cfg(not(any(target_os = "android", target_os = "ios")))]
+    pub extension_webview_manager: ExtensionWebviewManager,
+    pub context: Arc<Mutex<extension::webview::web::ApplicationContext>>,
 }
 
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
@@ -54,6 +68,13 @@ pub fn run() {
             db: DbConnection(Arc::new(Mutex::new(None))),
             hlc: Mutex::new(HlcService::new()),
             extension_manager: ExtensionManager::new(),
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension_webview_manager: ExtensionWebviewManager::new(),
+            context: Arc::new(Mutex::new(extension::webview::web::ApplicationContext {
+                theme: "dark".to_string(),
+                locale: "en".to_string(),
+                platform: std::env::consts::OS.to_string(),
+            })),
         })
         //.manage(ExtensionState::default())
         .plugin(tauri_plugin_dialog::init())
@@ -78,6 +99,11 @@ pub fn run() {
             database::vault_exists,
             extension::database::extension_sql_execute,
             extension::database::extension_sql_select,
+            extension::web::extension_web_fetch,
+            extension::web::extension_web_open,
+            extension::permissions::check::check_web_permission,
+            extension::permissions::check::check_database_permission,
+            extension::permissions::check::check_filesystem_permission,
             extension::get_all_dev_extensions,
             extension::get_all_extensions,
             extension::get_extension_info,
@@ -87,6 +113,41 @@ pub fn run() {
             extension::preview_extension,
             extension::remove_dev_extension,
             extension::remove_extension,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::open_extension_webview_window,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::close_extension_webview_window,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::focus_extension_webview_window,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::update_extension_webview_window_position,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::update_extension_webview_window_size,
+            // WebView API commands (for native window extensions, desktop only)
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::webview::web::webview_extension_get_info,
+            extension::webview::web::webview_extension_context_get,
+            extension::webview::web::webview_extension_context_set,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::webview::database::webview_extension_db_query,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::webview::database::webview_extension_db_execute,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::webview::web::webview_extension_check_web_permission,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::webview::web::webview_extension_check_database_permission,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::webview::web::webview_extension_check_filesystem_permission,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::webview::web::webview_extension_web_open,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::webview::web::webview_extension_web_request,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::webview::web::webview_extension_emit_to_all,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::webview::filesystem::webview_extension_fs_save_file,
+            #[cfg(not(any(target_os = "android", target_os = "ios")))]
+            extension::webview::filesystem::webview_extension_fs_open_file,
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "haex-hub",
-  "version": "0.1.4",
+  "version": "0.1.13",
   "identifier": "space.haex.hub",
   "build": {
     "beforeDevCommand": "pnpm dev",
@@ -11,6 +11,7 @@
   },
 
   "app": {
+    "withGlobalTauri": true,
     "windows": [
       {
         "title": "haex-hub",

src/components/haex/desktop/extension-frame.vue

@@ -86,6 +86,21 @@ const extension = computed(() => {
 })
 
 const handleIframeLoad = () => {
+  console.log('[ExtensionFrame] Iframe loaded successfully for:', extension.value?.name)
+
+  // Try to inject a test script to see if JavaScript execution works
+  try {
+    if (iframeRef.value?.contentWindow) {
+      console.log('[ExtensionFrame] Iframe has contentWindow access')
+      // This will fail with sandboxed iframes without allow-same-origin
+      console.log('[ExtensionFrame] Iframe origin:', iframeRef.value.contentWindow.location.href)
+    } else {
+      console.warn('[ExtensionFrame] Iframe contentWindow is null/undefined')
+    }
+  } catch (e) {
+    console.warn('[ExtensionFrame] Cannot access iframe content (expected with sandbox):', e)
+  }
+
   // Delay the fade-in slightly to allow window animation to mostly complete
   setTimeout(() => {
     isLoading.value = false
@@ -102,13 +117,28 @@ const sandboxAttributes = computed(() => {
 
 // Generate extension URL
 const extensionUrl = computed(() => {
-  if (!extension.value) return ''
+  if (!extension.value) {
+    console.log('[ExtensionFrame] No extension found')
+    return ''
+  }
 
   const { publicKey, name, version, devServerUrl } = extension.value
   const assetPath = 'index.html'
 
+  console.log('[ExtensionFrame] Generating URL for extension:', {
+    name,
+    publicKey: publicKey?.substring(0, 10) + '...',
+    version,
+    devServerUrl,
+    platform,
+  })
+
   if (!publicKey || !name || !version) {
-    console.error('Missing required extension fields')
+    console.error('[ExtensionFrame] Missing required extension fields:', {
+      hasPublicKey: !!publicKey,
+      hasName: !!name,
+      hasVersion: !!version,
+    })
     return ''
   }
 
@@ -116,7 +146,9 @@ const extensionUrl = computed(() => {
   if (devServerUrl) {
     const cleanUrl = devServerUrl.replace(/\/$/, '')
     const cleanPath = assetPath.replace(/^\//, '')
-    return cleanPath ? `${cleanUrl}/${cleanPath}` : cleanUrl
+    const url = cleanPath ? `${cleanUrl}/${cleanPath}` : cleanUrl
+    console.log('[ExtensionFrame] Using dev server URL:', url)
+    return url
   }
 
   const extensionInfo = {
@@ -126,13 +158,18 @@ const extensionUrl = computed(() => {
   }
   const encodedInfo = btoa(JSON.stringify(extensionInfo))
 
+  let url = ''
   if (platform === 'android' || platform === 'windows') {
     // Android: Tauri uses http://{scheme}.localhost format
-    return `http://${EXTENSION_PROTOCOL_NAME}.localhost/${encodedInfo}/${assetPath}`
+    url = `http://${EXTENSION_PROTOCOL_NAME}.localhost/${encodedInfo}/${assetPath}`
+    console.log('[ExtensionFrame] Generated Android/Windows URL:', url)
   } else {
     // Desktop: Use custom protocol with base64 as host
-    return `${EXTENSION_PROTOCOL_PREFIX}${encodedInfo}/${assetPath}`
+    url = `${EXTENSION_PROTOCOL_PREFIX}${encodedInfo}/${assetPath}`
+    console.log('[ExtensionFrame] Generated Desktop URL:', url)
   }
+
+  return url
 })
 
 const retryLoad = () => {
@@ -150,19 +187,28 @@ onMounted(() => {
   // Wait for iframe to be ready
   if (iframeRef.value && extension.value) {
     console.log(
-      '[ExtensionFrame] Manually registering iframe on mount',
+      '[ExtensionFrame] Component MOUNTED',
       extension.value.name,
       'windowId:',
       props.windowId,
     )
     registerExtensionIFrame(iframeRef.value, extension.value, props.windowId)
+  } else {
+    console.warn('[ExtensionFrame] Component mounted but missing iframe or extension:', {
+      hasIframe: !!iframeRef.value,
+      hasExtension: !!extension.value,
+    })
   }
 })
 
 // Explicit cleanup before unmount
 onBeforeUnmount(() => {
+  console.log('[ExtensionFrame] Component UNMOUNTING', {
+    extensionId: props.extensionId,
+    windowId: props.windowId,
+    hasIframe: !!iframeRef.value,
+  })
   if (iframeRef.value) {
-    console.log('[ExtensionFrame] Unregistering iframe on unmount')
     unregisterExtensionIFrame(iframeRef.value)
   }
 })

src/components/haex/desktop/index.vue

@@ -92,130 +92,142 @@
               :key="window.id"
             >
               <!-- Overview Mode: Teleport to window preview -->
-              <Teleport
+              <template
                 v-if="
                   windowManager.showWindowOverview &&
                   overviewWindowState.has(window.id)
                 "
-                :to="`#window-preview-${window.id}`"
               >
-                <div
+                <Teleport :to="`#window-preview-${window.id}`">
-                  class="absolute origin-top-left"
+                  <div
-                  :style="{
+                    class="absolute origin-top-left"
-                    transform: `scale(${overviewWindowState.get(window.id)!.scale})`,
+                    :style="{
-                    width: `${overviewWindowState.get(window.id)!.width}px`,
+                      transform: `scale(${overviewWindowState.get(window.id)!.scale})`,
-                    height: `${overviewWindowState.get(window.id)!.height}px`,
+                      width: `${overviewWindowState.get(window.id)!.width}px`,
-                  }"
+                      height: `${overviewWindowState.get(window.id)!.height}px`,
-                >
+                    }"
-                  <HaexWindow
-                    v-show="
-                      windowManager.showWindowOverview || !window.isMinimized
-                    "
-                    :id="window.id"
-                    v-model:x="overviewWindowState.get(window.id)!.x"
-                    v-model:y="overviewWindowState.get(window.id)!.y"
-                    v-model:width="overviewWindowState.get(window.id)!.width"
-                    v-model:height="overviewWindowState.get(window.id)!.height"
-                    :title="window.title"
-                    :icon="window.icon"
-                    :is-active="windowManager.isWindowActive(window.id)"
-                    :source-x="window.sourceX"
-                    :source-y="window.sourceY"
-                    :source-width="window.sourceWidth"
-                    :source-height="window.sourceHeight"
-                    :is-opening="window.isOpening"
-                    :is-closing="window.isClosing"
-                    :warning-level="
-                      window.type === 'extension' &&
-                      availableExtensions.find(
-                        (ext) => ext.id === window.sourceId,
-                      )?.devServerUrl
-                        ? 'warning'
-                        : undefined
-                    "
-                    class="no-swipe"
-                    @close="windowManager.closeWindow(window.id)"
-                    @minimize="windowManager.minimizeWindow(window.id)"
-                    @activate="windowManager.activateWindow(window.id)"
-                    @position-changed="
-                      (x, y) =>
-                        windowManager.updateWindowPosition(window.id, x, y)
-                    "
-                    @size-changed="
-                      (width, height) =>
-                        windowManager.updateWindowSize(window.id, width, height)
-                    "
-                    @drag-start="handleWindowDragStart(window.id)"
-                    @drag-end="handleWindowDragEnd"
                   >
-                    <!-- System Window: Render Vue Component -->
+                    <HaexWindow
-                    <component
+                      v-show="
-                      :is="getSystemWindowComponent(window.sourceId)"
+                        windowManager.showWindowOverview || !window.isMinimized
-                      v-if="window.type === 'system'"
+                      "
-                    />
+                      :id="window.id"
+                      v-model:x="overviewWindowState.get(window.id)!.x"
+                      v-model:y="overviewWindowState.get(window.id)!.y"
+                      v-model:width="overviewWindowState.get(window.id)!.width"
+                      v-model:height="
+                        overviewWindowState.get(window.id)!.height
+                      "
+                      :title="window.title"
+                      :icon="window.icon"
+                      :is-active="windowManager.isWindowActive(window.id)"
+                      :source-x="window.sourceX"
+                      :source-y="window.sourceY"
+                      :source-width="window.sourceWidth"
+                      :source-height="window.sourceHeight"
+                      :is-opening="window.isOpening"
+                      :is-closing="window.isClosing"
+                      :warning-level="
+                        window.type === 'extension' &&
+                        availableExtensions.find(
+                          (ext) => ext.id === window.sourceId,
+                        )?.devServerUrl
+                          ? 'warning'
+                          : undefined
+                      "
+                      class="no-swipe"
+                      @close="windowManager.closeWindow(window.id)"
+                      @minimize="windowManager.minimizeWindow(window.id)"
+                      @activate="windowManager.activateWindow(window.id)"
+                      @position-changed="
+                        (x, y) =>
+                          windowManager.updateWindowPosition(window.id, x, y)
+                      "
+                      @size-changed="
+                        (width, height) =>
+                          windowManager.updateWindowSize(
+                            window.id,
+                            width,
+                            height,
+                          )
+                      "
+                      @drag-start="handleWindowDragStart(window.id)"
+                      @drag-end="handleWindowDragEnd"
+                    >
+                      <!-- System Window: Render Vue Component -->
+                      <component
+                        :is="getSystemWindowComponent(window.sourceId)"
+                        v-if="window.type === 'system'"
+                      />
 
-                    <!-- Extension Window: Render iFrame -->
+                      <!-- Extension Window: Render iFrame -->
-                    <HaexDesktopExtensionFrame
+                      <HaexDesktopExtensionFrame
-                      v-else
+                        v-else
-                      :extension-id="window.sourceId"
+                        :extension-id="window.sourceId"
-                      :window-id="window.id"
+                        :window-id="window.id"
-                    />
+                      />
-                  </HaexWindow>
+                    </HaexWindow>
-                </div>
+                  </div>
-              </Teleport>
+                </Teleport>
+              </template>
 
               <!-- Desktop Mode: Render directly in workspace -->
-              <HaexWindow
+              <template v-else>
-                v-else
+                <HaexWindow
-                v-show="windowManager.showWindowOverview || !window.isMinimized"
+                  v-show="
-                :id="window.id"
+                    windowManager.showWindowOverview || !window.isMinimized
-                v-model:x="window.x"
+                  "
-                v-model:y="window.y"
+                  :id="window.id"
-                v-model:width="window.width"
+                  v-model:x="window.x"
-                v-model:height="window.height"
+                  v-model:y="window.y"
-                :title="window.title"
+                  v-model:width="window.width"
-                :icon="window.icon"
+                  v-model:height="window.height"
-                :is-active="windowManager.isWindowActive(window.id)"
+                  :title="window.title"
-                :source-x="window.sourceX"
+                  :icon="window.icon"
-                :source-y="window.sourceY"
+                  :is-active="windowManager.isWindowActive(window.id)"
-                :source-width="window.sourceWidth"
+                  :source-x="window.sourceX"
-                :source-height="window.sourceHeight"
+                  :source-y="window.sourceY"
-                :is-opening="window.isOpening"
+                  :source-width="window.sourceWidth"
-                :is-closing="window.isClosing"
+                  :source-height="window.sourceHeight"
-                :warning-level="
+                  :is-opening="window.isOpening"
-                  window.type === 'extension' &&
+                  :is-closing="window.isClosing"
-                  availableExtensions.find((ext) => ext.id === window.sourceId)
+                  :warning-level="
-                    ?.devServerUrl
+                    window.type === 'extension' &&
-                    ? 'warning'
+                    availableExtensions.find(
-                    : undefined
+                      (ext) => ext.id === window.sourceId,
-                "
+                    )?.devServerUrl
-                class="no-swipe"
+                      ? 'warning'
-                @close="windowManager.closeWindow(window.id)"
+                      : undefined
-                @minimize="windowManager.minimizeWindow(window.id)"
+                  "
-                @activate="windowManager.activateWindow(window.id)"
+                  class="no-swipe"
-                @position-changed="
+                  @close="windowManager.closeWindow(window.id)"
-                  (x, y) => windowManager.updateWindowPosition(window.id, x, y)
+                  @minimize="windowManager.minimizeWindow(window.id)"
-                "
+                  @activate="windowManager.activateWindow(window.id)"
-                @size-changed="
+                  @position-changed="
-                  (width, height) =>
+                    (x, y) =>
-                    windowManager.updateWindowSize(window.id, width, height)
+                      windowManager.updateWindowPosition(window.id, x, y)
-                "
+                  "
-                @drag-start="handleWindowDragStart(window.id)"
+                  @size-changed="
-                @drag-end="handleWindowDragEnd"
+                    (width, height) =>
-              >
+                      windowManager.updateWindowSize(window.id, width, height)
-                <!-- System Window: Render Vue Component -->
+                  "
-                <component
+                  @drag-start="handleWindowDragStart(window.id)"
-                  :is="getSystemWindowComponent(window.sourceId)"
+                  @drag-end="handleWindowDragEnd"
-                  v-if="window.type === 'system'"
+                >
-                />
+                  <!-- System Window: Render Vue Component -->
+                  <component
+                    :is="getSystemWindowComponent(window.sourceId)"
+                    v-if="window.type === 'system'"
+                  />
 
-                <!-- Extension Window: Render iFrame -->
+                  <!-- Extension Window: Render iFrame -->
-                <HaexDesktopExtensionFrame
+                  <HaexDesktopExtensionFrame
-                  v-else
+                    v-else
-                  :extension-id="window.sourceId"
+                    :extension-id="window.sourceId"
-                  :window-id="window.id"
+                    :window-id="window.id"
-                />
+                  />
-              </HaexWindow>
+                </HaexWindow>
+              </template>
             </template>
           </div>
         </UContextMenu>
@@ -297,7 +309,7 @@ const currentDraggedItem = reactive({
 })
 
 // Track mouse position for showing drop target
-const { x: mouseX, y: mouseY } = useMouse()
+const { x: mouseX } = useMouse()
 
 const dropTargetZone = computed(() => {
   if (!isDragging.value) return null

src/components/haex/drawer/vault/create.vue

@@ -0,0 +1,167 @@
+<template>
+  <UiDrawer
+    v-model:open="open"
+    :title="t('title')"
+    :description="t('description')"
+  >
+    <UiButton
+      :label="t('button.label')"
+      :ui="{
+        base: 'px-3 py-2',
+      }"
+      icon="mdi:plus"
+      size="xl"
+      variant="outline"
+      block
+    />
+
+    <template #content>
+      <div class="p-6 flex flex-col min-h-[50vh]">
+        <div class="flex-1 flex items-center justify-center px-4">
+          <UForm
+            :state="vault"
+            class="w-full max-w-md space-y-6"
+          >
+            <UFormField
+              :label="t('vault.label')"
+              name="name"
+            >
+              <UInput
+                v-model="vault.name"
+                icon="mdi:safe"
+                :placeholder="t('vault.placeholder')"
+                autofocus
+                size="xl"
+                class="w-full"
+              />
+            </UFormField>
+
+            <UFormField
+              :label="t('password.label')"
+              name="password"
+            >
+              <UiInput
+                v-model="vault.password"
+                type="password"
+                icon="i-heroicons-key"
+                :placeholder="t('password.placeholder')"
+                size="xl"
+                class="w-full"
+              />
+            </UFormField>
+          </UForm>
+        </div>
+
+        <div class="flex gap-3 mt-auto pt-6">
+          <UButton
+            color="neutral"
+            variant="outline"
+            block
+            size="xl"
+            @click="open = false"
+          >
+            {{ t('cancel') }}
+          </UButton>
+          <UButton
+            color="primary"
+            block
+            size="xl"
+            @click="onCreateAsync"
+          >
+            {{ t('create') }}
+          </UButton>
+        </div>
+      </div>
+    </template>
+  </UiDrawer>
+</template>
+
+<script setup lang="ts">
+import { vaultSchema } from './schema'
+
+const open = defineModel<boolean>('open', { default: false })
+
+const { t } = useI18n({
+  useScope: 'local',
+})
+
+const vault = reactive<{
+  name: string
+  password: string
+  type: 'password' | 'text'
+}>({
+  name: 'HaexVault',
+  password: '',
+  type: 'password',
+})
+
+const initVault = () => {
+  vault.name = 'HaexVault'
+  vault.password = ''
+  vault.type = 'password'
+}
+
+const { createAsync } = useVaultStore()
+const { add } = useToast()
+
+const check = ref(false)
+
+const onCreateAsync = async () => {
+  check.value = true
+
+  const nameCheck = vaultSchema.name.safeParse(vault.name)
+  const passwordCheck = vaultSchema.password.safeParse(vault.password)
+
+  if (!nameCheck.success || !passwordCheck.success) return
+
+  open.value = false
+  try {
+    if (vault.name && vault.password) {
+      const vaultId = await createAsync({
+        vaultName: vault.name,
+        password: vault.password,
+      })
+
+      if (vaultId) {
+        initVault()
+        await navigateTo(
+          useLocaleRoute()({ name: 'desktop', params: { vaultId } }),
+        )
+      }
+    }
+  } catch (error) {
+    console.error(error)
+    add({ color: 'error', description: JSON.stringify(error) })
+  }
+}
+</script>
+
+<i18n lang="yaml">
+de:
+  button:
+    label: Vault erstellen
+  vault:
+    label: Vaultname
+    placeholder: Vaultname
+  password:
+    label: Passwort
+    placeholder: Passwort eingeben
+  title: Neue HaexVault erstellen
+  create: Erstellen
+  cancel: Abbrechen
+  description: Erstelle eine neue Vault für deine Daten
+
+en:
+  button:
+    label: Create vault
+  vault:
+    label: Vault name
+    placeholder: Vault name
+  password:
+    label: Password
+    placeholder: Enter password
+  title: Create new HaexVault
+  create: Create
+  cancel: Cancel
+  description: Create a new vault for your data
+</i18n>

src/components/haex/drawer/vault/open.vue

@@ -1,12 +1,11 @@
 <template>
-  <UiDialogConfirm
+  <UiDrawer
     v-model:open="open"
-    :confirm-label="t('open')"
+    :title="t('title')"
-    :description="vault.path || path"
+    :description="path || t('description')"
-    @confirm="onOpenDatabase"
   >
     <UiButton
-      :label="t('vault.open')"
+      :label="t('button.label')"
       :ui="{
         base: 'px-3 py-2',
       }"
@@ -16,37 +15,63 @@
       block
     />
 
-    <template #title>
+    <template #content>
-      <i18n-t
+      <div class="p-6 flex flex-col min-h-[50vh]">
-        keypath="title"
+        <div class="flex-1 flex items-center justify-center px-4">
-        tag="p"
+          <div class="w-full max-w-md space-y-4">
-        class="flex gap-x-2 text-wrap"
+            <div
-      >
+              v-if="path"
-        <template #haexvault>
+              class="text-sm text-gray-500 dark:text-gray-400"
-          <UiTextGradient>HaexVault</UiTextGradient>
+            >
-        </template>
+              <span class="font-medium">{{ t('path.label') }}:</span>
-      </i18n-t>
+              {{ path }}
-    </template>
+            </div>
 
-    <template #body>
+            <UForm
-      <UForm
+              :state="vault"
-        :state="vault"
+              class="w-full"
-        class="flex flex-col gap-4 w-full h-full justify-center"
+            >
-      >
+              <UFormField
-        <UiInputPassword
+                :label="t('password.label')"
-          v-model="vault.password"
+                name="password"
-          class="w-full"
+              >
-          autofocus
+                <UInput
-        />
+                  v-model="vault.password"
+                  type="password"
+                  icon="i-heroicons-key"
+                  :placeholder="t('password.placeholder')"
+                  autofocus
+                  size="xl"
+                  class="w-full"
+                  @keyup.enter="onOpenDatabase"
+                />
+              </UFormField>
+            </UForm>
+          </div>
+        </div>
 
-        <UButton
+        <div class="flex gap-3 mt-auto pt-6">
-          hidden
+          <UButton
-          type="submit"
+            color="neutral"
-          @click="onOpenDatabase"
+            variant="outline"
-        />
+            block
-      </UForm>
+            size="xl"
+            @click="open = false"
+          >
+            {{ t('cancel') }}
+          </UButton>
+          <UButton
+            color="primary"
+            block
+            size="xl"
+            @click="onOpenDatabase"
+          >
+            {{ t('open') }}
+          </UButton>
+        </div>
+      </div>
     </template>
-  </UiDialogConfirm>
+  </UiDrawer>
 </template>
 
 <script setup lang="ts">
@@ -156,7 +181,12 @@ const onOpenDatabase = async () => {
     )
   } catch (error) {
     open.value = false
-    if (error?.details?.reason === 'file is not a database') {
+    const errorDetails =
+      error && typeof error === 'object' && 'details' in error
+        ? (error as { details?: { reason?: string } }).details
+        : undefined
+
+    if (errorDetails?.reason === 'file is not a database') {
       add({
         color: 'error',
         title: t('error.password.title'),
@@ -171,25 +201,37 @@ const onOpenDatabase = async () => {
 
 <i18n lang="yaml">
 de:
+  button:
+    label: Vault öffnen
   open: Entsperren
-  title: '{haexvault} entsperren'
+  cancel: Abbrechen
-  password: Passwort
+  title: HaexVault entsperren
-  vault:
+  path:
-    open: Vault öffnen
+    label: Pfad
+  password:
+    label: Passwort
+    placeholder: Passwort eingeben
   description: Öffne eine vorhandene Vault
   error:
+    open: Vault konnte nicht geöffnet werden
     password:
       title: Vault konnte nicht geöffnet werden
-      description: Bitte üperprüfe das Passwort
+      description: Bitte überprüfe das Passwort
 
 en:
+  button:
+    label: Open Vault
   open: Unlock
-  title: Unlock {haexvault}
+  cancel: Cancel
-  password: Passwort
+  title: Unlock HaexVault
+  path:
+    label: Path
+  password:
+    label: Password
+    placeholder: Enter password
   description: Open your existing vault
-  vault:
-    open: Open Vault
   error:
+    open: Vault couldn't be opened
     password:
       title: Vault couldn't be opened
       description: Please check your password

src/components/haex/extension/launcher.vue

@@ -1,5 +1,5 @@
 <template>
-  <UDrawer
+  <UiDrawer
     v-model:open="open"
     direction="right"
     :title="t('launcher.title')"
@@ -7,9 +7,6 @@
     :overlay="false"
     :modal="false"
     :handle-only="true"
-    :ui="{
-      content: 'w-dvw max-w-md sm:max-w-fit',
-    }"
   >
     <UButton
       icon="material-symbols:apps"
@@ -66,7 +63,7 @@
         </div>
       </div>
     </template>
-  </UDrawer>
+  </UiDrawer>
 
   <!-- Uninstall Confirmation Dialog -->
   <UiDialogConfirm

src/components/haex/system/debug-logs.vue

@@ -0,0 +1,185 @@
+<template>
+  <div class="w-full h-full bg-default flex flex-col">
+    <!-- Header with controls -->
+    <div class="flex items-center justify-between p-4 border-b border-gray-200 dark:border-gray-700">
+      <div class="flex items-center gap-2">
+        <UIcon
+          name="i-heroicons-bug-ant"
+          class="w-5 h-5"
+        />
+        <h2 class="text-lg font-semibold">
+          Debug Logs
+        </h2>
+        <span class="text-xs text-gray-500">
+          {{ logs.length }} logs
+        </span>
+      </div>
+      <div class="flex gap-2">
+        <UButton
+          :label="allCopied ? 'Copied!' : 'Copy All'"
+          :color="allCopied ? 'success' : 'primary'"
+          size="sm"
+          @click="copyAllLogs"
+        />
+        <UButton
+          label="Clear Logs"
+          color="error"
+          size="sm"
+          @click="clearLogs"
+        />
+      </div>
+    </div>
+
+    <!-- Filter Buttons -->
+    <div class="flex gap-2 p-4 border-b border-gray-200 dark:border-gray-700 overflow-x-auto">
+      <UButton
+        v-for="level in ['all', 'log', 'info', 'warn', 'error', 'debug']"
+        :key="level"
+        :label="level"
+        :color="filter === level ? 'primary' : 'neutral'"
+        size="sm"
+        @click="filter = level as any"
+      />
+    </div>
+
+    <!-- Logs Container -->
+    <div
+      ref="logsContainer"
+      class="flex-1 overflow-y-auto p-4 space-y-2 font-mono text-xs"
+    >
+      <div
+        v-for="(log, index) in filteredLogs"
+        :key="index"
+        :class="[
+          'p-3 rounded-lg border-l-4 relative group',
+          log.level === 'error'
+            ? 'bg-red-50 dark:bg-red-950/30 border-red-500'
+            : log.level === 'warn'
+              ? 'bg-yellow-50 dark:bg-yellow-950/30 border-yellow-500'
+              : log.level === 'info'
+                ? 'bg-blue-50 dark:bg-blue-950/30 border-blue-500'
+                : log.level === 'debug'
+                  ? 'bg-purple-50 dark:bg-purple-950/30 border-purple-500'
+                  : 'bg-gray-50 dark:bg-gray-800 border-gray-400',
+        ]"
+      >
+        <!-- Copy Button -->
+        <button
+          class="absolute top-2 right-2 p-1.5 rounded bg-white dark:bg-gray-700 shadow-sm hover:bg-gray-100 dark:hover:bg-gray-600 active:scale-95 transition-all"
+          @click="copyLogToClipboard(log)"
+        >
+          <UIcon
+            :name="copiedIndex === index ? 'i-heroicons-check' : 'i-heroicons-clipboard-document'"
+            :class="[
+              'w-4 h-4',
+              copiedIndex === index ? 'text-green-500' : ''
+            ]"
+          />
+        </button>
+
+        <div class="flex items-start gap-2 mb-1">
+          <span class="text-gray-500 dark:text-gray-400 text-[10px] shrink-0">
+            {{ log.timestamp }}
+          </span>
+          <span
+            :class="[
+              'font-semibold text-[10px] uppercase shrink-0',
+              log.level === 'error'
+                ? 'text-red-600 dark:text-red-400'
+                : log.level === 'warn'
+                  ? 'text-yellow-600 dark:text-yellow-400'
+                  : log.level === 'info'
+                    ? 'text-blue-600 dark:text-blue-400'
+                    : log.level === 'debug'
+                      ? 'text-purple-600 dark:text-purple-400'
+                      : 'text-gray-600 dark:text-gray-400',
+            ]"
+          >
+            {{ log.level }}
+          </span>
+        </div>
+        <pre class="whitespace-pre-wrap break-words text-gray-900 dark:text-gray-100 pr-8">{{ log.message }}</pre>
+      </div>
+
+      <div
+        v-if="filteredLogs.length === 0"
+        class="text-center text-gray-500 py-8"
+      >
+        <UIcon
+          name="i-heroicons-document-text"
+          class="w-12 h-12 mx-auto mb-2 opacity-50"
+        />
+        <p>No logs to display</p>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { globalConsoleLogs } from '~/plugins/console-interceptor'
+import type { ConsoleLog } from '~/plugins/console-interceptor'
+
+const filter = ref<'all' | 'log' | 'info' | 'warn' | 'error' | 'debug'>('all')
+const logsContainer = ref<HTMLDivElement>()
+const copiedIndex = ref<number | null>(null)
+const allCopied = ref(false)
+
+const { $clearConsoleLogs } = useNuxtApp()
+const { copy } = useClipboard()
+
+const logs = computed(() => globalConsoleLogs.value)
+
+const filteredLogs = computed(() => {
+  if (filter.value === 'all') {
+    return logs.value
+  }
+  return logs.value.filter((log) => log.level === filter.value)
+})
+
+const clearLogs = () => {
+  if ($clearConsoleLogs) {
+    $clearConsoleLogs()
+  }
+}
+
+const copyLogToClipboard = async (log: ConsoleLog) => {
+  const text = `[${log.timestamp}] [${log.level.toUpperCase()}] ${log.message}`
+  await copy(text)
+
+  // Find the index in filteredLogs for visual feedback
+  const index = filteredLogs.value.indexOf(log)
+  copiedIndex.value = index
+
+  // Reset after 2 seconds
+  setTimeout(() => {
+    copiedIndex.value = null
+  }, 2000)
+}
+
+const copyAllLogs = async () => {
+  const allLogsText = filteredLogs.value
+    .map((log) => `[${log.timestamp}] [${log.level.toUpperCase()}] ${log.message}`)
+    .join('\n')
+
+  await copy(allLogsText)
+  allCopied.value = true
+
+  // Reset after 2 seconds
+  setTimeout(() => {
+    allCopied.value = false
+  }, 2000)
+}
+
+// Auto-scroll to bottom when new logs arrive
+watch(
+  () => logs.value.length,
+  () => {
+    nextTick(() => {
+      if (logsContainer.value) {
+        logsContainer.value.scrollTop = logsContainer.value.scrollHeight
+      }
+    })
+  },
+  { immediate: true }
+)
+</script>

src/components/haex/system/developer.vue

@@ -163,8 +163,9 @@ const loadDevExtensionAsync = async () => {
     extensionPath.value = ''
   } catch (error) {
     console.error('Failed to load dev extension:', error)
+    const { getErrorMessage } = useExtensionError()
     add({
-      description: t('add.errors.loadFailed') + error,
+      description: `${t('add.errors.loadFailed')}: ${getErrorMessage(error)}`,
       color: 'error',
     })
   } finally {
@@ -196,8 +197,9 @@ const reloadDevExtensionAsync = async (extension: ExtensionInfoResponse) => {
     })
   } catch (error) {
     console.error('Failed to reload dev extension:', error)
+    const { getErrorMessage } = useExtensionError()
     add({
-      description: t('list.errors.reloadFailed') + error,
+      description: `${t('list.errors.reloadFailed')}: ${getErrorMessage(error)}`,
       color: 'error',
     })
   }
@@ -223,8 +225,9 @@ const removeDevExtensionAsync = async (extension: ExtensionInfoResponse) => {
     await loadExtensionsAsync()
   } catch (error) {
     console.error('Failed to remove dev extension:', error)
+    const { getErrorMessage } = useExtensionError()
     add({
-      description: t('list.errors.removeFailed') + error,
+      description: `${t('list.errors.removeFailed')}: ${getErrorMessage(error)}`,
       color: 'error',
     })
   }

src/components/haex/vault/create.vue

@@ -1,135 +0,0 @@
-<template>
-  <UiDialogConfirm
-    :confirm-label="t('create')"
-    @confirm="onCreateAsync"
-    :description="t('description')"
-  >
-    <UiButton
-      :label="t('vault.create')"
-      :ui="{
-        base: 'px-3 py-2',
-      }"
-      icon="mdi:plus"
-      size="xl"
-      variant="outline"
-      block
-    />
-
-    <template #title>
-      <i18n-t
-        keypath="title"
-        tag="p"
-        class="flex gap-x-2 flex-wrap"
-      >
-        <template #haexvault>
-          <UiTextGradient>HaexVault</UiTextGradient>
-        </template>
-      </i18n-t>
-    </template>
-
-    <template #body>
-      <UForm
-        :state="vault"
-        class="flex flex-col gap-4 w-full h-full justify-center"
-      >
-        <UiInput
-          v-model="vault.name"
-          leading-icon="mdi:safe"
-          :label="t('vault.label')"
-          :placeholder="t('vault.placeholder')"
-        />
-        <UiInputPassword
-          v-model="vault.password"
-          leading-icon="mdi:key-outline"
-        />
-
-        <UButton
-          hidden
-          type="submit"
-          @click="onCreateAsync"
-        />
-      </UForm>
-    </template>
-  </UiDialogConfirm>
-</template>
-
-<script setup lang="ts">
-import { vaultSchema } from './schema'
-
-const { t } = useI18n({
-  useScope: 'local',
-})
-
-const vault = reactive<{
-  name: string
-  password: string
-  type: 'password' | 'text'
-}>({
-  name: 'HaexVault',
-  password: '',
-  type: 'password',
-})
-
-const initVault = () => {
-  vault.name = 'HaexVault'
-  vault.password = ''
-  vault.type = 'password'
-}
-
-const { createAsync } = useVaultStore()
-const { add } = useToast()
-
-const check = ref(false)
-const open = ref()
-
-const onCreateAsync = async () => {
-  check.value = true
-
-  const nameCheck = vaultSchema.name.safeParse(vault.name)
-  const passwordCheck = vaultSchema.password.safeParse(vault.password)
-
-  if (!nameCheck.success || !passwordCheck.success) return
-
-  open.value = false
-  try {
-    if (vault.name && vault.password) {
-      const vaultId = await createAsync({
-        vaultName: vault.name,
-        password: vault.password,
-      })
-
-      if (vaultId) {
-        initVault()
-        await navigateTo(
-          useLocaleRoute()({ name: 'desktop', params: { vaultId } }),
-        )
-      }
-    }
-  } catch (error) {
-    console.error(error)
-    add({ color: 'error', description: JSON.stringify(error) })
-  }
-}
-</script>
-
-<i18n lang="yaml">
-de:
-  vault:
-    create: Neue Vault erstellen
-    label: Vaultname
-    placeholder: Vaultname
-    name: HaexVault
-  title: Neue {haexvault} erstellen
-  create: Erstellen
-  description: Erstelle eine neue Vault für deine Daten
-
-en:
-  vault:
-    create: Create new vault
-    label: Vaultname
-    placeholder: Vaultname
-    name: HaexVault
-  title: Create new {haexvault}
-  create: Create
-  description: Create a new vault for your data
-</i18n>

src/components/haex/window/index.vue

@@ -83,6 +83,7 @@
 </template>
 
 <script setup lang="ts">
+import { getAvailableContentHeight } from '~/utils/viewport'
 const props = defineProps<{
   id: string
   title: string
@@ -329,31 +330,11 @@ const handleMaximize = () => {
     const bounds = getViewportBounds()
 
     if (bounds && bounds.width > 0 && bounds.height > 0) {
-      // Get safe-area-insets from CSS variables for debug
-      const safeAreaTop = parseFloat(
-        getComputedStyle(document.documentElement).getPropertyValue(
-          '--safe-area-inset-top',
-        ) || '0',
-      )
-      const safeAreaBottom = parseFloat(
-        getComputedStyle(document.documentElement).getPropertyValue(
-          '--safe-area-inset-bottom',
-        ) || '0',
-      )
-
-      // Desktop container uses 'absolute inset-0' which stretches over full viewport
-      // bounds.height = full viewport height (includes header area + safe-areas)
-      // We need to calculate available space properly
-
-      // Get header height from UI store (measured reactively in layout)
-      const uiStore = useUiStore()
-      const headerHeight = uiStore.headerHeight
-
       x.value = 0
-      y.value = 0 // Start below header and status bar
+      y.value = 0
       width.value = bounds.width
-      // Height: viewport - header - both safe-areas
+      // Use helper function to calculate correct height with safe areas
-      height.value = bounds.height - headerHeight - safeAreaTop - safeAreaBottom
+      height.value = getAvailableContentHeight()
       isMaximized.value = true
     }
   }

src/components/haex/window/overview.vue

@@ -1,5 +1,5 @@
 <template>
-  <UDrawer
+  <UiDrawer
     v-model:open="localShowWindowOverview"
     direction="bottom"
     :title="t('modal.title')"
@@ -70,7 +70,7 @@
         </div>
       </div>
     </template>
-  </UDrawer>
+  </UiDrawer>
 </template>
 
 <script setup lang="ts">

src/components/haex/workspace/drawer.vue

@@ -1,5 +1,5 @@
 <template>
-  <UDrawer
+  <UiDrawer
     v-model:open="isOverviewMode"
     direction="left"
     :overlay="false"
@@ -8,7 +8,7 @@
     description="Workspaces"
   >
     <template #content>
-      <div class="py-8 pl-8 pr-4 h-full overflow-y-auto">
+      <div class="pl-8 pr-4 overflow-y-auto py-8">
         <!-- Workspace Cards -->
         <div class="flex flex-col gap-3">
           <HaexWorkspaceCard
@@ -29,7 +29,7 @@
         />
       </div>
     </template>
-  </UDrawer>
+  </UiDrawer>
 </template>
 
 <script setup lang="ts">

src/components/ui/Drawer.vue

@@ -0,0 +1,32 @@
+<template>
+  <UDrawer
+    v-bind="$attrs"
+    :ui="{
+      content:
+        'pb-[env(safe-area-inset-bottom)] pt-[env(safe-area-inset-top)] ',
+      ...(ui || {}),
+    }"
+  >
+    <template
+      v-for="(_, name) in $slots"
+      #[name]="slotData"
+    >
+      <slot
+        :name="name"
+        v-bind="slotData"
+      />
+    </template>
+  </UDrawer>
+</template>
+
+<script setup lang="ts">
+import type { DrawerProps } from '@nuxt/ui'
+
+/**
+ * Wrapper around UDrawer that automatically applies safe area insets for mobile devices.
+ * Passes through all props and slots to UDrawer.
+ */
+const props = defineProps</* @vue-ignore */ DrawerProps>()
+
+const { ui } = toRefs(props)
+</script>

src/components/ui/input/index.vue

@@ -5,7 +5,6 @@
     :readonly="props.readOnly"
     :leading-icon="props.leadingIcon"
     :ui="{ base: 'peer' }"
-    size="lg"
     @change="(e) => $emit('change', e)"
     @blur="(e) => $emit('blur', e)"
     @keyup="(e: KeyboardEvent) => $emit('keyup', e)"
@@ -83,8 +82,6 @@ const filteredSlots = computed(() => {
     Object.entries(useSlots()).filter(([name]) => name !== 'trailing'),
   )
 })
-
-const { isSmallScreen } = storeToRefs(useUiStore())
 </script>
 
 <i18n lang="yaml">

src/composables/extensionMessageHandler.ts

@@ -1,49 +1,64 @@
 // composables/extensionMessageHandler.ts
-import { invoke } from '@tauri-apps/api/core'
 import type { IHaexHubExtension } from '~/types/haexhub'
+import { HAEXTENSION_METHODS, HAEXTENSION_EVENTS } from '@haexhub/sdk'
 import {
   EXTENSION_PROTOCOL_NAME,
   EXTENSION_PROTOCOL_PREFIX,
 } from '~/config/constants'
-import type { Platform } from '@tauri-apps/plugin-os'
+import {
-
+  handleDatabaseMethodAsync,
-interface ExtensionRequest {
+  handleFilesystemMethodAsync,
-  id: string
+  handleWebMethodAsync,
-  method: string
+  handlePermissionsMethodAsync,
-  params: Record<string, unknown>
+  handleContextMethodAsync,
-  timestamp: number
+  handleStorageMethodAsync,
-}
+  setContextGetters,
+  type ExtensionRequest,
+  type ExtensionInstance,
+} from './handlers'
 
 // Globaler Handler - nur einmal registriert
 let globalHandlerRegistered = false
-interface ExtensionInstance {
-  extension: IHaexHubExtension
-  windowId: string
-}
 const iframeRegistry = new Map<HTMLIFrameElement, ExtensionInstance>()
 // Map event.source (WindowProxy) to extension instance for sandbox-compatible matching
 const sourceRegistry = new Map<Window, ExtensionInstance>()
 // Reverse map: window ID to Window for broadcasting (supports multiple windows per extension)
 const windowIdToWindowMap = new Map<string, Window>()
 
-// Store context values that need to be accessed outside setup
-let contextGetters: {
-  getTheme: () => string
-  getLocale: () => string
-  getPlatform: () => Platform | undefined
-} | null = null
-
 const registerGlobalMessageHandler = () => {
   if (globalHandlerRegistered) return
 
+  console.log('[ExtensionHandler] Registering global message handler')
+
   window.addEventListener('message', async (event: MessageEvent) => {
+    // Log ALL messages first for debugging
+    console.log('[ExtensionHandler] Raw message received:', {
+      origin: event.origin,
+      dataType: typeof event.data,
+      data: event.data,
+      hasSource: !!event.source,
+    })
+
     // Ignore console.forward messages - they're handled elsewhere
     if (event.data?.type === 'console.forward') {
       return
     }
 
+    // Handle debug messages for Android debugging
+    if (event.data?.type === 'haexhub:debug') {
+      console.log('[ExtensionHandler] DEBUG MESSAGE FROM EXTENSION:', event.data.data)
+      return
+    }
+
     const request = event.data as ExtensionRequest
 
+    console.log('[ExtensionHandler] Processing extension message:', {
+      origin: event.origin,
+      method: request?.method,
+      id: request?.id,
+      hasSource: !!event.source,
+    })
+
     // Find extension instance by decoding event.origin (works with sandboxed iframes)
     // Origin formats:
     // - Desktop: haex-extension://<base64>
@@ -166,17 +181,36 @@ const registerGlobalMessageHandler = () => {
     try {
       let result: unknown
 
-      if (request.method.startsWith('haextension.context.')) {
+      // Check specific methods first, then use direct routing to handlers
+      if (request.method === HAEXTENSION_METHODS.context.get) {
         result = await handleContextMethodAsync(request)
-      } else if (request.method.startsWith('haextension.storage.')) {
+      } else if (
+        request.method === HAEXTENSION_METHODS.storage.getItem ||
+        request.method === HAEXTENSION_METHODS.storage.setItem ||
+        request.method === HAEXTENSION_METHODS.storage.removeItem ||
+        request.method === HAEXTENSION_METHODS.storage.clear ||
+        request.method === HAEXTENSION_METHODS.storage.keys
+      ) {
         result = await handleStorageMethodAsync(request, instance)
-      } else if (request.method.startsWith('haextension.db.')) {
+      } else if (
+        request.method === HAEXTENSION_METHODS.database.query ||
+        request.method === HAEXTENSION_METHODS.database.execute ||
+        request.method === HAEXTENSION_METHODS.database.transaction
+      ) {
         result = await handleDatabaseMethodAsync(request, instance.extension)
-      } else if (request.method.startsWith('haextension.fs.')) {
+      } else if (
+        request.method === HAEXTENSION_METHODS.filesystem.saveFile ||
+        request.method === HAEXTENSION_METHODS.filesystem.openFile ||
+        request.method === HAEXTENSION_METHODS.filesystem.showImage
+      ) {
         result = await handleFilesystemMethodAsync(request, instance.extension)
-      } else if (request.method.startsWith('haextension.http.')) {
+      } else if (
-        result = await handleHttpMethodAsync(request, instance.extension)
+        request.method === HAEXTENSION_METHODS.web.fetch ||
-      } else if (request.method.startsWith('haextension.permissions.')) {
+        request.method === HAEXTENSION_METHODS.application.open
+      ) {
+        result = await handleWebMethodAsync(request, instance.extension)
+      } else if (request.method.startsWith('haextension:permissions:')) {
+        // Permissions noch nicht migriert
         result = await handlePermissionsMethodAsync(request, instance.extension)
       } else {
         throw new Error(`Unknown method: ${request.method}`)
@@ -227,13 +261,11 @@ export const useExtensionMessageHandler = (
   const { locale } = useI18n()
   const { platform } = useDeviceStore()
   // Store getters for use outside setup context
-  if (!contextGetters) {
+  setContextGetters({
-    contextGetters = {
+    getTheme: () => currentTheme.value?.value || 'system',
-      getTheme: () => currentTheme.value?.value || 'system',
+    getLocale: () => locale.value,
-      getLocale: () => locale.value,
+    getPlatform: () => platform,
-      getPlatform: () => platform,
+  })
-    }
-  }
 
   // Registriere globalen Handler beim ersten Aufruf
   registerGlobalMessageHandler()
@@ -275,12 +307,7 @@ export const registerExtensionIFrame = (
   // Stelle sicher, dass der globale Handler registriert ist
   registerGlobalMessageHandler()
 
-  // Warnung wenn Context Getters nicht initialisiert wurden
+  // Note: Context getters should be initialized via useExtensionMessageHandler first
-  if (!contextGetters) {
-    console.warn(
-      'Context getters not initialized. Make sure useExtensionMessageHandler was called in setup context first.',
-    )
-  }
 
   iframeRegistry.set(iframe, { extension, windowId })
 }
@@ -333,226 +360,26 @@ export const broadcastContextToAllExtensions = (context: {
   platform?: string
 }) => {
   const message = {
-    type: 'haextension.context.changed',
+    type: HAEXTENSION_EVENTS.CONTEXT_CHANGED,
     data: { context },
     timestamp: Date.now(),
   }
 
-  console.log('[ExtensionHandler] Broadcasting context to all extensions:', context)
+  console.log(
+    '[ExtensionHandler] Broadcasting context to all extensions:',
+    context,
+  )
 
   // Send to all registered extension windows
   for (const [_, instance] of iframeRegistry.entries()) {
     const win = windowIdToWindowMap.get(instance.windowId)
     if (win) {
-      console.log('[ExtensionHandler] Sending context to:', instance.extension.name, instance.windowId)
+      console.log(
+        '[ExtensionHandler] Sending context to:',
+        instance.extension.name,
+        instance.windowId,
+      )
       win.postMessage(message, '*')
     }
   }
 }
-
-// ==========================================
-// Database Methods
-// ==========================================
-
-async function handleDatabaseMethodAsync(
-  request: ExtensionRequest,
-  extension: IHaexHubExtension, // Direkter Typ
-) {
-  const params = request.params as {
-    query?: string
-    params?: unknown[]
-  }
-
-  switch (request.method) {
-    case 'haextension.db.query': {
-      try {
-        const rows = await invoke<unknown[]>('extension_sql_select', {
-          sql: params.query || '',
-          params: params.params || [],
-          publicKey: extension.publicKey,
-          name: extension.name,
-        })
-
-        return {
-          rows,
-          rowsAffected: 0,
-          lastInsertId: undefined,
-        }
-      } catch (error: any) {
-        // If error is about non-SELECT statements (INSERT/UPDATE/DELETE with RETURNING),
-        // automatically retry with execute
-        if (error?.message?.includes('Only SELECT statements are allowed')) {
-          const rows = await invoke<unknown[]>('extension_sql_execute', {
-            sql: params.query || '',
-            params: params.params || [],
-            publicKey: extension.publicKey,
-            name: extension.name,
-          })
-
-          return {
-            rows,
-            rowsAffected: rows.length,
-            lastInsertId: undefined,
-          }
-        }
-        throw error
-      }
-    }
-
-    case 'haextension.db.execute': {
-      const rows = await invoke<unknown[]>('extension_sql_execute', {
-        sql: params.query || '',
-        params: params.params || [],
-        publicKey: extension.publicKey,
-        name: extension.name,
-      })
-
-      return {
-        rows,
-        rowsAffected: 1,
-        lastInsertId: undefined,
-      }
-    }
-
-    case 'haextension.db.transaction': {
-      const statements =
-        (request.params as { statements?: string[] }).statements || []
-
-      for (const stmt of statements) {
-        await invoke('extension_sql_execute', {
-          sql: stmt,
-          params: [],
-          publicKey: extension.publicKey,
-          name: extension.name,
-        })
-      }
-
-      return { success: true }
-    }
-
-    default:
-      throw new Error(`Unknown database method: ${request.method}`)
-  }
-}
-// ==========================================
-// Filesystem Methods (TODO)
-// ==========================================
-
-async function handleFilesystemMethodAsync(
-  request: ExtensionRequest,
-  extension: IHaexHubExtension,
-) {
-  if (!request || !extension) return
-  // TODO: Implementiere Filesystem Commands im Backend
-  throw new Error('Filesystem methods not yet implemented')
-}
-
-// ==========================================
-// HTTP Methods (TODO)
-// ==========================================
-
-async function handleHttpMethodAsync(
-  request: ExtensionRequest,
-  extension: IHaexHubExtension,
-) {
-  if (!extension || !request) {
-    throw new Error('Extension not found')
-  }
-
-  // TODO: Implementiere HTTP Commands im Backend
-  throw new Error('HTTP methods not yet implemented')
-}
-
-// ==========================================
-// Permission Methods (TODO)
-// ==========================================
-
-async function handlePermissionsMethodAsync(
-  request: ExtensionRequest,
-  extension: IHaexHubExtension,
-) {
-  if (!extension || !request) {
-    throw new Error('Extension not found')
-  }
-
-  // TODO: Implementiere Permission Request UI
-  throw new Error('Permission methods not yet implemented')
-}
-
-// ==========================================
-// Context Methods
-// ==========================================
-
-async function handleContextMethodAsync(request: ExtensionRequest) {
-  switch (request.method) {
-    case 'haextension.context.get':
-      if (!contextGetters) {
-        throw new Error(
-          'Context not initialized. Make sure useExtensionMessageHandler is called in a component.',
-        )
-      }
-      return {
-        theme: contextGetters.getTheme(),
-        locale: contextGetters.getLocale(),
-        platform: contextGetters.getPlatform(),
-      }
-
-    default:
-      throw new Error(`Unknown context method: ${request.method}`)
-  }
-}
-
-// ==========================================
-// Storage Methods
-// ==========================================
-
-async function handleStorageMethodAsync(
-  request: ExtensionRequest,
-  instance: ExtensionInstance,
-) {
-  // Storage is now per-window, not per-extension
-  const storageKey = `ext_${instance.extension.id}_${instance.windowId}_`
-  console.log(
-    `[HaexHub Storage] ${request.method} for window ${instance.windowId}`,
-  )
-
-  switch (request.method) {
-    case 'haextension.storage.getItem': {
-      const key = request.params.key as string
-      return localStorage.getItem(storageKey + key)
-    }
-
-    case 'haextension.storage.setItem': {
-      const key = request.params.key as string
-      const value = request.params.value as string
-      localStorage.setItem(storageKey + key, value)
-      return null
-    }
-
-    case 'haextension.storage.removeItem': {
-      const key = request.params.key as string
-      localStorage.removeItem(storageKey + key)
-      return null
-    }
-
-    case 'haextension.storage.clear': {
-      // Remove only instance-specific keys
-      const keys = Object.keys(localStorage).filter((k) =>
-        k.startsWith(storageKey),
-      )
-      keys.forEach((k) => localStorage.removeItem(k))
-      return null
-    }
-
-    case 'haextension.storage.keys': {
-      // Return only instance-specific keys (without prefix)
-      const keys = Object.keys(localStorage)
-        .filter((k) => k.startsWith(storageKey))
-        .map((k) => k.substring(storageKey.length))
-      return keys
-    }
-
-    default:
-      throw new Error(`Unknown storage method: ${request.method}`)
-  }
-}

src/composables/handlers/context.ts

@@ -0,0 +1,37 @@
+import type { Platform } from '@tauri-apps/plugin-os'
+import { HAEXTENSION_METHODS } from '@haexhub/sdk'
+import type { ExtensionRequest } from './types'
+
+// Context getters are set from the main handler during initialization
+let contextGetters: {
+  getTheme: () => string
+  getLocale: () => string
+  getPlatform: () => Platform | undefined
+} | null = null
+
+export function setContextGetters(getters: {
+  getTheme: () => string
+  getLocale: () => string
+  getPlatform: () => Platform | undefined
+}) {
+  contextGetters = getters
+}
+
+export async function handleContextMethodAsync(request: ExtensionRequest) {
+  switch (request.method) {
+    case HAEXTENSION_METHODS.context.get:
+      if (!contextGetters) {
+        throw new Error(
+          'Context not initialized. Make sure useExtensionMessageHandler is called in a component.',
+        )
+      }
+      return {
+        theme: contextGetters.getTheme(),
+        locale: contextGetters.getLocale(),
+        platform: contextGetters.getPlatform(),
+      }
+
+    default:
+      throw new Error(`Unknown context method: ${request.method}`)
+  }
+}

src/composables/handlers/database.ts

@@ -0,0 +1,85 @@
+import { invoke } from '@tauri-apps/api/core'
+import { HAEXTENSION_METHODS } from '@haexhub/sdk'
+import type { IHaexHubExtension } from '~/types/haexhub'
+import type { ExtensionRequest } from './types'
+
+export async function handleDatabaseMethodAsync(
+  request: ExtensionRequest,
+  extension: IHaexHubExtension,
+) {
+  const params = request.params as {
+    query?: string
+    params?: unknown[]
+  }
+
+  switch (request.method) {
+    case HAEXTENSION_METHODS.database.query: {
+      try {
+        const rows = await invoke<unknown[]>('extension_sql_select', {
+          sql: params.query || '',
+          params: params.params || [],
+          publicKey: extension.publicKey,
+          name: extension.name,
+        })
+
+        return {
+          rows,
+          rowsAffected: 0,
+          lastInsertId: undefined,
+        }
+      } catch (error) {
+        // If error is about non-SELECT statements (INSERT/UPDATE/DELETE with RETURNING),
+        // automatically retry with execute
+        if (error?.message?.includes('Only SELECT statements are allowed')) {
+          const rows = await invoke<unknown[]>('extension_sql_execute', {
+            sql: params.query || '',
+            params: params.params || [],
+            publicKey: extension.publicKey,
+            name: extension.name,
+          })
+
+          return {
+            rows,
+            rowsAffected: rows.length,
+            lastInsertId: undefined,
+          }
+        }
+        throw error
+      }
+    }
+
+    case HAEXTENSION_METHODS.database.execute: {
+      const rows = await invoke<unknown[]>('extension_sql_execute', {
+        sql: params.query || '',
+        params: params.params || [],
+        publicKey: extension.publicKey,
+        name: extension.name,
+      })
+
+      return {
+        rows,
+        rowsAffected: 1,
+        lastInsertId: undefined,
+      }
+    }
+
+    case HAEXTENSION_METHODS.database.transaction: {
+      const statements =
+        (request.params as { statements?: string[] }).statements || []
+
+      for (const stmt of statements) {
+        await invoke('extension_sql_execute', {
+          sql: stmt,
+          params: [],
+          publicKey: extension.publicKey,
+          name: extension.name,
+        })
+      }
+
+      return { success: true }
+    }
+
+    default:
+      throw new Error(`Unknown database method: ${request.method}`)
+  }
+}

src/composables/handlers/filesystem.ts

@@ -0,0 +1,93 @@
+import { save } from '@tauri-apps/plugin-dialog'
+import { writeFile } from '@tauri-apps/plugin-fs'
+import { openPath } from '@tauri-apps/plugin-opener'
+import { tempDir, join } from '@tauri-apps/api/path'
+import { HAEXTENSION_METHODS } from '@haexhub/sdk'
+import type { IHaexHubExtension } from '~/types/haexhub'
+import type { ExtensionRequest } from './types'
+
+export async function handleFilesystemMethodAsync(
+  request: ExtensionRequest,
+  extension: IHaexHubExtension,
+) {
+  if (!request || !extension) return
+
+  switch (request.method) {
+    case HAEXTENSION_METHODS.filesystem.saveFile: {
+      const params = request.params as {
+        data: number[]
+        defaultPath?: string
+        title?: string
+        filters?: Array<{ name: string; extensions: string[] }>
+      }
+
+      // Convert number array back to Uint8Array
+      const data = new Uint8Array(params.data)
+
+      // Open save dialog
+      const filePath = await save({
+        defaultPath: params.defaultPath,
+        title: params.title || 'Save File',
+        filters: params.filters,
+      })
+
+      // User cancelled
+      if (!filePath) {
+        return null
+      }
+
+      // Write file
+      await writeFile(filePath, data)
+
+      return {
+        path: filePath,
+        success: true,
+      }
+    }
+
+    case HAEXTENSION_METHODS.filesystem.showImage: {
+      // This method is now handled by the frontend using PhotoSwipe
+      // We keep it for backwards compatibility but it's a no-op
+      return {
+        success: true,
+        useFrontend: true,
+      }
+    }
+
+    case HAEXTENSION_METHODS.filesystem.openFile: {
+      const params = request.params as {
+        data: number[]
+        fileName: string
+        mimeType?: string
+      }
+
+      try {
+        // Convert number array back to Uint8Array
+        const data = new Uint8Array(params.data)
+
+        // Get temp directory and create file path
+        const tempDirPath = await tempDir()
+        const tempFilePath = await join(tempDirPath, params.fileName)
+
+        // Write file to temp directory
+        await writeFile(tempFilePath, data)
+
+        // Open file with system's default viewer
+        await openPath(tempFilePath)
+
+        return {
+          success: true,
+        }
+      }
+      catch (error) {
+        console.error('[Filesystem] Error opening file:', error)
+        return {
+          success: false,
+        }
+      }
+    }
+
+    default:
+      throw new Error(`Unknown filesystem method: ${request.method}`)
+  }
+}

src/composables/handlers/index.ts

@@ -0,0 +1,10 @@
+// Export all handler functions
+export { handleDatabaseMethodAsync } from './database'
+export { handleFilesystemMethodAsync } from './filesystem'
+export { handleWebMethodAsync } from './web'
+export { handlePermissionsMethodAsync } from './permissions'
+export { handleContextMethodAsync, setContextGetters } from './context'
+export { handleStorageMethodAsync } from './storage'
+
+// Export shared types
+export type { ExtensionRequest, ExtensionInstance } from './types'

src/composables/handlers/permissions.ts

@@ -0,0 +1,111 @@
+import type { IHaexHubExtension } from '~/types/haexhub'
+import type { ExtensionRequest } from './types'
+import { invoke } from '@tauri-apps/api/core'
+
+export async function handlePermissionsMethodAsync(
+  request: ExtensionRequest,
+  extension: IHaexHubExtension,
+) {
+  if (!extension || !request) {
+    throw new Error('Extension not found')
+  }
+
+  const { method, params } = request
+
+  if (method === 'permissions.web.check') {
+    return await checkWebPermissionAsync(params, extension)
+  }
+
+  if (method === 'permissions.database.check') {
+    return await checkDatabasePermissionAsync(params, extension)
+  }
+
+  if (method === 'permissions.filesystem.check') {
+    return await checkFilesystemPermissionAsync(params, extension)
+  }
+
+  throw new Error(`Unknown permission method: ${method}`)
+}
+
+async function checkWebPermissionAsync(
+  params: Record<string, unknown>,
+  extension: IHaexHubExtension,
+) {
+  const url = params.url as string
+  const method = (params.method as string) || 'GET'
+
+  if (!url) {
+    throw new Error('URL is required')
+  }
+
+  try {
+    await invoke<void>('check_web_permission', {
+      extensionId: extension.id,
+      method,
+      url,
+    })
+
+    return { status: 'granted' }
+  } catch (error: any) {
+    // Permission denied errors return a specific error code
+    if (error?.code === 1002 || error?.message?.includes('Permission denied')) {
+      return { status: 'denied' }
+    }
+    // Other errors should be thrown
+    throw error
+  }
+}
+
+async function checkDatabasePermissionAsync(
+  params: Record<string, unknown>,
+  extension: IHaexHubExtension,
+) {
+  const resource = params.resource as string
+  const operation = params.operation as string
+
+  if (!resource || !operation) {
+    throw new Error('Resource and operation are required')
+  }
+
+  try {
+    await invoke<void>('check_database_permission', {
+      extensionId: extension.id,
+      resource,
+      operation,
+    })
+
+    return { status: 'granted' }
+  } catch (error: any) {
+    if (error?.code === 1002 || error?.message?.includes('Permission denied')) {
+      return { status: 'denied' }
+    }
+    throw error
+  }
+}
+
+async function checkFilesystemPermissionAsync(
+  params: Record<string, unknown>,
+  extension: IHaexHubExtension,
+) {
+  const path = params.path as string
+  const operation = params.operation as string
+
+  if (!path || !operation) {
+    throw new Error('Path and operation are required')
+  }
+
+  try {
+    await invoke<void>('check_filesystem_permission', {
+      extensionId: extension.id,
+      path,
+      operation,
+    })
+
+    return { status: 'granted' }
+  } catch (error: any) {
+    if (error?.code === 1002 || error?.message?.includes('Permission denied')) {
+      return { status: 'denied' }
+    }
+    throw error
+  }
+}

src/composables/handlers/storage.ts

@@ -0,0 +1,52 @@
+import type { ExtensionRequest, ExtensionInstance } from './types'
+
+export async function handleStorageMethodAsync(
+  request: ExtensionRequest,
+  instance: ExtensionInstance,
+) {
+  // Storage is now per-window, not per-extension
+  const storageKey = `ext_${instance.extension.id}_${instance.windowId}_`
+  console.log(
+    `[HaexHub Storage] ${request.method} for window ${instance.windowId}`,
+  )
+
+  switch (request.method) {
+    case 'haextension.storage.getItem': {
+      const key = request.params.key as string
+      return localStorage.getItem(storageKey + key)
+    }
+
+    case 'haextension.storage.setItem': {
+      const key = request.params.key as string
+      const value = request.params.value as string
+      localStorage.setItem(storageKey + key, value)
+      return null
+    }
+
+    case 'haextension.storage.removeItem': {
+      const key = request.params.key as string
+      localStorage.removeItem(storageKey + key)
+      return null
+    }
+
+    case 'haextension.storage.clear': {
+      // Remove only instance-specific keys
+      const keys = Object.keys(localStorage).filter((k) =>
+        k.startsWith(storageKey),
+      )
+      keys.forEach((k) => localStorage.removeItem(k))
+      return null
+    }
+
+    case 'haextension.storage.keys': {
+      // Return only instance-specific keys (without prefix)
+      const keys = Object.keys(localStorage)
+        .filter((k) => k.startsWith(storageKey))
+        .map((k) => k.substring(storageKey.length))
+      return keys
+    }
+
+    default:
+      throw new Error(`Unknown storage method: ${request.method}`)
+  }
+}

src/composables/handlers/types.ts

@@ -0,0 +1,14 @@
+// Shared types for extension message handlers
+import type { IHaexHubExtension } from '~/types/haexhub'
+
+export interface ExtensionRequest {
+  id: string
+  method: string
+  params: Record<string, unknown>
+  timestamp: number
+}
+
+export interface ExtensionInstance {
+  extension: IHaexHubExtension
+  windowId: string
+}

src/composables/handlers/web.ts

@@ -0,0 +1,109 @@
+import type { IHaexHubExtension } from '~/types/haexhub'
+import type { ExtensionRequest } from './types'
+import { invoke } from '@tauri-apps/api/core'
+import { HAEXTENSION_METHODS } from '@haexhub/sdk'
+
+export async function handleWebMethodAsync(
+  request: ExtensionRequest,
+  extension: IHaexHubExtension,
+) {
+  if (!extension || !request) {
+    throw new Error('Extension not found')
+  }
+
+  const { method, params } = request
+
+  if (method === HAEXTENSION_METHODS.web.fetch) {
+    return await handleWebFetchAsync(params, extension)
+  }
+
+  if (method === HAEXTENSION_METHODS.application.open) {
+    return await handleWebOpenAsync(params, extension)
+  }
+
+  throw new Error(`Unknown web method: ${method}`)
+}
+
+async function handleWebFetchAsync(
+  params: Record<string, unknown>,
+  extension: IHaexHubExtension,
+) {
+  const url = params.url as string
+  const method = (params.method as string) || undefined
+  const headers = (params.headers as Record<string, string>) || undefined
+  const body = params.body as string | undefined
+  const timeout = (params.timeout as number) || undefined
+
+  if (!url) {
+    throw new Error('URL is required')
+  }
+
+  try {
+    // Call Rust backend through Tauri IPC to avoid CORS restrictions
+    const response = await invoke<{
+      status: number
+      status_text: string
+      headers: Record<string, string>
+      body: string
+      url: string
+    }>('extension_web_fetch', {
+      url,
+      method,
+      headers,
+      body,
+      timeout,
+      publicKey: extension.publicKey,
+      name: extension.name,
+    })
+
+    return {
+      status: response.status,
+      statusText: response.status_text,
+      headers: response.headers,
+      body: response.body,
+      url: response.url,
+    }
+  } catch (error: any) {
+    console.error('Web request error:', error)
+
+    // Check if it's a permission denied error
+    if (error?.code === 1002 || error?.message?.includes('Permission denied')) {
+      const toast = useToast()
+      toast.add({
+        title: 'Permission denied',
+        description: `Extension "${extension.name}" does not have permission to access ${url}`,
+        color: 'error',
+      })
+    }
+
+    if (error instanceof Error) {
+      throw new Error(`Web request failed: ${error.message}`)
+    }
+    throw new Error(`Web request failed with unknown error: ${JSON.stringify(error)}`)
+  }
+}
+
+async function handleWebOpenAsync(
+  params: Record<string, unknown>,
+  extension: IHaexHubExtension,
+) {
+  const url = params.url as string
+
+  if (!url) {
+    throw new Error('URL is required')
+  }
+
+  try {
+    // Call Rust backend to open URL in default browser
+    await invoke<void>('extension_web_open', {
+      url,
+      publicKey: extension.publicKey,
+      name: extension.name,
+    })
+  } catch (error) {
+    if (error instanceof Error) {
+      throw new Error(`Failed to open URL: ${error.message}`)
+    }
+    throw new Error('Failed to open URL with unknown error')
+  }
+}

src/composables/useExtensionError.ts

@@ -0,0 +1,43 @@
+import type { SerializedExtensionError } from '~~/src-tauri/bindings/SerializedExtensionError'
+
+/**
+ * Type guard to check if error is a SerializedExtensionError
+ */
+export function isSerializedExtensionError(error: unknown): error is SerializedExtensionError {
+  return (
+    typeof error === 'object' &&
+    error !== null &&
+    'code' in error &&
+    'message' in error &&
+    'type' in error
+  )
+}
+
+/**
+ * Extract error message from unknown error type
+ */
+export function getErrorMessage(error: unknown): string {
+  if (isSerializedExtensionError(error)) {
+    return error.message
+  }
+
+  if (error instanceof Error) {
+    return error.message
+  }
+
+  if (typeof error === 'string') {
+    return error
+  }
+
+  return String(error)
+}
+
+/**
+ * Composable for handling extension errors
+ */
+export function useExtensionError() {
+  return {
+    isSerializedExtensionError,
+    getErrorMessage,
+  }
+}

src/constants/eventNames.json

@@ -0,0 +1,5 @@
+{
+  "extension": {
+    "windowClosed": "extension-window-closed"
+  }
+}

src/constants/events.ts

@@ -0,0 +1,9 @@
+/**
+ * Tauri Event Names
+ * Diese Konstanten werden aus eventNames.json generiert und mit dem Backend synchronisiert
+ */
+
+import eventNames from './eventNames.json'
+
+// Extension Events
+export const EXTENSION_WINDOW_CLOSED = eventNames.extension.windowClosed

src/database/schemas/haex.ts

@@ -30,9 +30,7 @@ export const haexDevices = sqliteTable(
     id: text(tableNames.haex.devices.columns.id)
       .$defaultFn(() => crypto.randomUUID())
       .primaryKey(),
-    deviceId: text(tableNames.haex.devices.columns.deviceId)
+    deviceId: text(tableNames.haex.devices.columns.deviceId).notNull().unique(),
-      .notNull()
-      .unique(),
     name: text(tableNames.haex.devices.columns.name).notNull(),
     createdAt: text(tableNames.haex.devices.columns.createdAt).default(
       sql`(CURRENT_TIMESTAMP)`,
@@ -81,6 +79,7 @@ export const haexExtensions = sqliteTable(
     icon: text(),
     signature: text().notNull(),
     single_instance: integer({ mode: 'boolean' }).default(false),
+    display_mode: text().default('auto'),
   }),
   (table) => [
     // UNIQUE constraint: Pro Developer (public_key) kann nur eine Extension mit diesem Namen existieren
@@ -102,7 +101,7 @@ export const haexExtensionPermissions = sqliteTable(
         onDelete: 'cascade',
       }),
     resourceType: text('resource_type', {
-      enum: ['fs', 'http', 'db', 'shell'],
+      enum: ['fs', 'web', 'db', 'shell'],
     }),
     action: text({ enum: ['read', 'write'] }),
     target: text(),

src/layouts/default.vue

@@ -58,6 +58,9 @@
       <slot />
     </main>
 
+    <!-- Page-specific Drawers -->
+    <slot name="drawers" />
+
     <!-- Workspace Drawer -->
     <HaexWorkspaceDrawer />
   </div>

src/pages/index.vue

@@ -15,10 +15,10 @@
         </span>
 
         <div class="flex flex-col gap-4 h-24 items-stretch justify-center">
-          <HaexVaultCreate />
+          <HaexDrawerVaultCreate v-model:open="isCreateDrawerOpen" />
 
-          <HaexVaultOpen
+          <HaexDrawerVaultOpen
-            v-model:open="passwordPromptOpen"
+            v-model:open="isOpenDrawerOpen"
             :path="selectedVault?.path"
           />
         </div>
@@ -54,7 +54,7 @@
                 ]"
                 @click="
                   () => {
-                    passwordPromptOpen = true
+                    isOpenDrawerOpen = true
                     selectedVault = vault
                   }
                 "
@@ -111,9 +111,23 @@ definePageMeta({
 
 const { t } = useI18n()
 
-const passwordPromptOpen = ref(false)
+const isCreateDrawerOpen = ref(false)
+const isOpenDrawerOpen = ref(false)
 const selectedVault = ref<VaultInfo>()
 
+// Ensure only one drawer is open at a time
+watch(isCreateDrawerOpen, (isOpen) => {
+  if (isOpen) {
+    isOpenDrawerOpen.value = false
+  }
+})
+
+watch(isOpenDrawerOpen, (isOpen) => {
+  if (isOpen) {
+    isCreateDrawerOpen.value = false
+  }
+})
+
 const showRemoveDialog = ref(false)
 
 const { lastVaults } = storeToRefs(useLastVaultStore())

src/plugins/console-interceptor.ts

@@ -57,14 +57,14 @@ function interceptConsole(level: 'log' | 'info' | 'warn' | 'error' | 'debug') {
 }
 
 export default defineNuxtPlugin(() => {
-  // TEMPORARILY DISABLED - Console interceptor causes too many logs
+  // Enable console interceptor
-  // interceptConsole('log')
+  interceptConsole('log')
-  // interceptConsole('info')
+  interceptConsole('info')
-  // interceptConsole('warn')
+  interceptConsole('warn')
-  // interceptConsole('error')
+  interceptConsole('error')
-  // interceptConsole('debug')
+  interceptConsole('debug')
 
-  // console.log('[HaexHub] Global console interceptor installed')
+  console.log('[HaexHub] Global console interceptor installed')
 
   return {
     provide: {

src/stores/desktop/windowManager.ts

@@ -1,4 +1,9 @@
 import { defineAsyncComponent, type Component } from 'vue'
+import { getFullscreenDimensions } from '~/utils/viewport'
+import { isDesktop } from '~/utils/platform'
+import { invoke } from '@tauri-apps/api/core'
+import { listen, type UnlistenFn } from '@tauri-apps/api/event'
+import { EXTENSION_WINDOW_CLOSED } from '~/constants/events'
 
 export interface IWindow {
   id: string
@@ -86,6 +91,18 @@ export const useWindowManagerStore = defineStore('windowManager', () => {
       resizable: true,
       singleton: false,
     },
+    debugLogs: {
+      id: 'debugLogs',
+      name: 'Debug Logs',
+      icon: 'i-heroicons-bug-ant',
+      component: defineAsyncComponent(
+        () => import('@/components/haex/system/debug-logs.vue'),
+      ),
+      defaultWidth: 1000,
+      defaultHeight: 700,
+      resizable: true,
+      singleton: true,
+    },
   }
 
   const getSystemWindow = (id: string): SystemWindowDefinition | undefined => {
@@ -140,6 +157,73 @@ export const useWindowManagerStore = defineStore('windowManager', () => {
     workspaceId?: string
   }) => {
     try {
+      // Desktop: Check extension's display_mode preference
+      if (type === 'extension') {
+        const extensionsStore = useExtensionsStore()
+        const extension = extensionsStore.availableExtensions.find(
+          (e) => e.id === sourceId,
+        )
+        const finalTitle = title ?? extension?.name ?? 'Extension'
+
+        // Determine if we should use native window based on display_mode and platform
+        const displayMode = extension?.displayMode ?? 'auto'
+        const shouldUseNativeWindow =
+          (displayMode === 'window') ||
+          (displayMode === 'auto' && isDesktop())
+
+        console.log('[windowManager] Extension display mode check:', {
+          extensionId: sourceId,
+          extensionName: extension?.name,
+          displayMode,
+          isDesktop: isDesktop(),
+          shouldUseNativeWindow,
+        })
+
+        // Desktop: Extensions can run in native WebviewWindows (separate processes)
+        if (isDesktop() && shouldUseNativeWindow) {
+          try {
+            console.log('[windowManager] Opening native window with sourceId:', sourceId)
+            console.log('[windowManager] Extension object:', extension)
+            // Backend generates and returns the window_id
+            const windowId = await invoke<string>('open_extension_webview_window', {
+              extensionId: sourceId,
+              title: finalTitle,
+              width,
+              height,
+              x: undefined, // Let OS handle positioning
+              y: undefined,
+            })
+
+            // Store minimal metadata for tracking (no UI management needed on desktop)
+            const newWindow: IWindow = {
+              id: windowId, // Use window_id from backend as ID
+              workspaceId: '', // Not used on desktop
+              type,
+              sourceId,
+              title: finalTitle,
+              icon,
+              x: 0,
+              y: 0,
+              width,
+              height,
+              isMinimized: false,
+              zIndex: 0,
+              isOpening: false,
+              isClosing: false,
+            }
+            windows.value.push(newWindow)
+
+            return windowId
+          } catch (error) {
+            console.error('Failed to open native extension window:', error)
+            throw error
+          }
+        }
+
+        // If display_mode is 'iframe' or we're not on desktop, fall through to iframe logic
+      }
+
+      // Mobile: Full UI-based window management (original logic)
       // Wenn kein workspaceId angegeben ist, nutze die current workspace
       const targetWorkspaceId =
         workspaceId || useWorkspaceStore().currentWorkspace?.id
@@ -191,22 +275,42 @@ export const useWindowManagerStore = defineStore('windowManager', () => {
       const viewportHeight = window.innerHeight - 60
 
       console.log('viewportHeight', window.innerHeight, viewportHeight)
-      const windowHeight = Math.min(height, viewportHeight)
 
-      // Adjust width proportionally if needed (optional)
+      // Check if we're on a small screen
-      const aspectRatio = width / height
+      const { isSmallScreen } = useUiStore()
-      const windowWidth = Math.min(
-        width,
-        viewportWidth,
-        windowHeight * aspectRatio,
-      )
 
-      // Calculate centered position with cascading offset (only count windows in current workspace)
+      let windowWidth: number
-      const offset = currentWorkspaceWindows.value.length * 30
+      let windowHeight: number
-      const centerX = Math.max(0, (viewportWidth - windowWidth) / 1 / 3)
+      let x: number
-      const centerY = Math.max(0, (viewportHeight - windowHeight) / 1 / 3)
+      let y: number
-      const x = Math.min(centerX + offset, viewportWidth - windowWidth)
+
-      const y = Math.min(centerY + offset, viewportHeight - windowHeight)
+      if (isSmallScreen) {
+        // On small screens, make window fullscreen starting at 0,0
+        // Use helper function to calculate correct dimensions with safe areas
+        const fullscreen = getFullscreenDimensions()
+        x = fullscreen.x
+        y = fullscreen.y
+        windowWidth = fullscreen.width
+        windowHeight = fullscreen.height
+      } else {
+        // On larger screens, use normal sizing and positioning
+        windowHeight = Math.min(height, viewportHeight)
+
+        // Adjust width proportionally if needed (optional)
+        const aspectRatio = width / height
+        windowWidth = Math.min(
+          width,
+          viewportWidth,
+          windowHeight * aspectRatio,
+        )
+
+        // Calculate centered position with cascading offset (only count windows in current workspace)
+        const offset = currentWorkspaceWindows.value.length * 30
+        const centerX = Math.max(0, (viewportWidth - windowWidth) / 1 / 3)
+        const centerY = Math.max(0, (viewportHeight - windowHeight) / 1 / 3)
+        x = Math.min(centerX + offset, viewportWidth - windowWidth)
+        y = Math.min(centerY + offset, viewportHeight - windowHeight)
+      }
 
       const newWindow: IWindow = {
         id: windowId,
@@ -253,10 +357,36 @@ export const useWindowManagerStore = defineStore('windowManager', () => {
    * In Zukunft sollte aber vorher ein close event an die Erweiterungen via postMessage geschickt werden,
    * so dass die Erweiterungen darauf reagieren können, um eventuell ungespeicherte Daten zu sichern
    *****************************************************************************************************/
-  const closeWindow = (windowId: string) => {
+  const closeWindow = async (windowId: string) => {
     const window = windows.value.find((w) => w.id === windowId)
     if (!window) return
 
+    // Desktop: Close native WebviewWindow for extensions (only if it's actually a native window)
+    // Check if extension is using native window mode (not iframe)
+    if (isDesktop() && window.type === 'extension') {
+      const extensionsStore = useExtensionsStore()
+      const extension = extensionsStore.availableExtensions.find(
+        (e) => e.id === window.sourceId,
+      )
+      const displayMode = extension?.displayMode ?? 'auto'
+      const isNativeWindow =
+        (displayMode === 'window') ||
+        (displayMode === 'auto' && isDesktop())
+
+      // Only try to close native window if it's actually running as native window
+      if (isNativeWindow) {
+        try {
+          await invoke('close_extension_webview_window', { windowId })
+          // Backend will emit event, our listener will update frontend tracking
+        } catch (error) {
+          console.error('Failed to close native extension window:', error)
+        }
+        return
+      }
+      // If not a native window, fall through to iframe cleanup below
+    }
+
+    // Mobile: Animated close with iframe cleanup
     // Start closing animation
     window.isClosing = true
 
@@ -337,6 +467,34 @@ export const useWindowManagerStore = defineStore('windowManager', () => {
     return currentWorkspaceWindows.value.filter((w) => w.isMinimized)
   })
 
+  // Desktop: Listen for native window close events from Tauri
+  // Backend is source of truth, frontend is read-only mirror for tracking
+  let _unlistenWindowClosed: UnlistenFn | null = null
+
+  const setupDesktopEventListenersAsync = async () => {
+    if (!isDesktop()) return
+
+    // Listen for native WebviewWindow close events from backend
+    _unlistenWindowClosed = await listen<string>(
+      EXTENSION_WINDOW_CLOSED,
+      (event) => {
+        const windowId = event.payload
+        console.log(`Native extension window closed: ${windowId}`)
+
+        // Remove from frontend tracking (read-only mirror of backend state)
+        const index = windows.value.findIndex((w) => w.id === windowId)
+        if (index !== -1) {
+          windows.value.splice(index, 1)
+        }
+      },
+    )
+  }
+
+  // Setup listeners on store creation (only on desktop)
+  if (isDesktop()) {
+    setupDesktopEventListenersAsync()
+  }
+
   return {
     activateWindow,
     activeWindowId,

src/stores/ui/index.ts

@@ -1,4 +1,6 @@
 import { breakpointsTailwind } from '@vueuse/core'
+import { invoke } from '@tauri-apps/api/core'
+import { HAEXTENSION_EVENTS } from '@haexhub/sdk'
 import { broadcastContextToAllExtensions } from '~/composables/extensionMessageHandler'
 
 import de from './de.json'
@@ -61,16 +63,34 @@ export const useUiStore = defineStore('uiStore', () => {
     colorMode.preference = currentThemeName.value
   })
 
-  // Broadcast theme and locale changes to extensions
+  // Broadcast theme and locale changes to extensions (including initial state)
   watch([currentThemeName, locale], async () => {
     const deviceStore = useDeviceStore()
     const platformValue = await deviceStore.platform
-    broadcastContextToAllExtensions({
+    const context = {
       theme: currentThemeName.value,
       locale: locale.value,
       platform: platformValue,
-    })
+    }
-  })
+
+    // Broadcast to iframe extensions (existing)
+    broadcastContextToAllExtensions(context)
+
+    // Update Tauri state and emit event for webview extensions
+    try {
+      await invoke('webview_extension_context_set', { context })
+      console.log('[UI Store] Context set in Tauri state:', context)
+      // Broadcast event to all webview extensions
+      await invoke('webview_extension_emit_to_all', {
+        event: HAEXTENSION_EVENTS.CONTEXT_CHANGED,
+        payload: { context }
+      })
+      console.log('[UI Store] Broadcasted context change event to webview extensions:', context)
+    } catch (error) {
+      // Ignore error if not running in Tauri (e.g., browser mode)
+      console.debug('[UI Store] Failed to update Tauri context:', error)
+    }
+  }, { immediate: true })
 
   const viewportHeightWithoutHeader = ref(0)
   const headerHeight = ref(0)

src/utils/platform.ts

@@ -0,0 +1,64 @@
+import { platform, type Platform } from '@tauri-apps/plugin-os'
+
+let cachedPlatform: Platform | null = null
+
+/**
+ * Get the current platform (cached after first call)
+ */
+export const getPlatform = (): Platform => {
+  if (!cachedPlatform) {
+    cachedPlatform = platform()
+  }
+  return cachedPlatform
+}
+
+/**
+ * Check if running on a desktop platform (Windows, Linux, macOS)
+ */
+export const isDesktop = (): boolean => {
+  const p = getPlatform()
+  return p === 'windows' || p === 'linux' || p === 'macos'
+}
+
+/**
+ * Check if running on a mobile platform (Android, iOS)
+ */
+export const isMobile = (): boolean => {
+  const p = getPlatform()
+  return p === 'android' || p === 'ios'
+}
+
+/**
+ * Check if running on Android
+ */
+export const isAndroid = (): boolean => {
+  return getPlatform() === 'android'
+}
+
+/**
+ * Check if running on iOS
+ */
+export const isIOS = (): boolean => {
+  return getPlatform() === 'ios'
+}
+
+/**
+ * Check if running on Windows
+ */
+export const isWindows = (): boolean => {
+  return getPlatform() === 'windows'
+}
+
+/**
+ * Check if running on Linux
+ */
+export const isLinux = (): boolean => {
+  return getPlatform() === 'linux'
+}
+
+/**
+ * Check if running on macOS
+ */
+export const isMacOS = (): boolean => {
+  return getPlatform() === 'macos'
+}

src/utils/viewport.ts

@@ -0,0 +1,63 @@
+// Viewport and safe area utilities
+
+export interface ViewportDimensions {
+  width: number
+  height: number
+  safeAreaTop: number
+  safeAreaBottom: number
+  headerHeight: number
+}
+
+/**
+ * Get viewport dimensions with safe areas and header height
+ */
+export function getViewportDimensions(): ViewportDimensions {
+  const viewportWidth = window.innerWidth
+  const viewportHeight = window.innerHeight - 40 // Subtract header height
+
+  // Get safe-area-insets from CSS variables
+  const safeAreaTop = parseFloat(
+    getComputedStyle(document.documentElement).getPropertyValue(
+      '--safe-area-inset-top',
+    ) || '0',
+  )
+  const safeAreaBottom = parseFloat(
+    getComputedStyle(document.documentElement).getPropertyValue(
+      '--safe-area-inset-bottom',
+    ) || '0',
+  )
+
+  // Get header height from UI store
+  const { headerHeight } = useUiStore()
+
+  return {
+    width: viewportWidth,
+    height: viewportHeight,
+    safeAreaTop,
+    safeAreaBottom,
+    headerHeight,
+  }
+}
+
+/**
+ * Calculate available content height (viewport height minus safe areas)
+ * Note: viewport height already excludes header, so we only subtract safe areas
+ */
+export function getAvailableContentHeight(): number {
+  const dimensions = getViewportDimensions()
+  return dimensions.height - dimensions.safeAreaTop - dimensions.safeAreaBottom
+}
+
+/**
+ * Calculate fullscreen window dimensions (for small screens)
+ */
+export function getFullscreenDimensions() {
+  const dimensions = getViewportDimensions()
+
+  return {
+    x: 0,
+    y: 0,
+    width: dimensions.width,
+    height: getAvailableContentHeight(),
+  }
+}