Update to SDK v1.9.10 with centralized method names

- Updated @haexhub/sdk dependency from 1.9.7 to 1.9.10
- Imported HAEXTENSION_METHODS and HAEXTENSION_EVENTS from SDK
- Updated all handler files to use new nested method constants
- Updated extensionMessageHandler to route using constants
- Changed application.open routing in web handler
- All method names now use haextension:subject:action schema

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';