fix: improve deep link handling and consolidate cleanup methods

- Fix window.location.href usage in DeepLinkRedirectView for Capacitor
  context: check if already in native app and use router navigation
  instead of window.location.href (which doesn't work in Capacitor)
- Consolidate teardown() and _cleanupOnFailure() by extracting shared
  cleanup logic to _performCleanup() method
- Make teardown() private since it's unused (kept for potential future use)
- Ensure both cleanup paths reset initializationPromise for consistency

This fixes navigation issues when DeepLinkRedirectView is accessed from
within the Capacitor app and removes code duplication in cleanup logic.

src/services/platforms/CapacitorPlatformService.ts

@@ -164,13 +164,16 @@ export class CapacitorPlatformService
   }
 
   /**
-   * Cleanup database state on initialization failure (v3.2)
+   * Shared cleanup logic for database connection teardown
+   * Closes database connection and resets state
+   *
+   * @private Internal method used by both teardown and _cleanupOnFailure
    */
-  private async _cleanupOnFailure(_error: unknown): Promise<void> {
+  private async _performCleanup(): Promise<void> {
     try {
-      if (this.db) {
+      if (await this.isDbOpen(this.db)) {
         try {
-          await this.db.close();
+          await this.db?.close();
         } catch (closeError) {
           logger.debug(
             "[CapacitorPlatformService] Error closing db during cleanup:",
@@ -197,9 +200,17 @@ export class CapacitorPlatformService
     } finally {
       this.db = null;
       this.initialized = false;
+      this.initializationPromise = null;
     }
   }
 
+  /**
+   * Cleanup database state on initialization failure (v3.2)
+   */
+  private async _cleanupOnFailure(_error: unknown): Promise<void> {
+    await this._performCleanup();
+  }
+
   /**
    * Internal initialization method (v3.5 - Minimal refactor)
    *
@@ -626,27 +637,10 @@ export class CapacitorPlatformService
    *
    * DO NOT call on route changes or component unmounts.
    *
-   * @public
+   * @private Unused - kept for potential future use
    */
-  public async teardown(): Promise<void> {
-    if (await this.isDbOpen(this.db)) {
-      try {
-        await this.db?.close();
-      } catch {
-        // Ignore close errors
-      }
-    }
-    try {
-      await SQLITE.closeConnection(
-        CapacitorPlatformService.DB_NAME,
-        CapacitorPlatformService.READ_ONLY,
-      );
-    } catch {
-      // Ignore close errors
-    }
-    this.db = null;
-    this.initialized = false;
-    this.initializationPromise = null;
+  private async teardown(): Promise<void> {
+    await this._performCleanup();
     this.connLog("teardown complete");
   }
 

src/views/DeepLinkRedirectView.vue

@@ -157,6 +157,22 @@ export default class DeepLinkRedirectView extends Vue {
     }
 
     try {
+      const capabilities = this.platformService.getCapabilities();
+
+      // If we're already in the native app, use router navigation instead
+      // of window.location.href (which doesn't work properly in Capacitor)
+      if (capabilities.isNativeApp) {
+        // Navigate directly using the router
+        const destinationPath = `/${this.destinationUrl}`;
+        this.$router.push(destinationPath).catch((error) => {
+          logger.error("Router navigation failed: " + errorStringForLog(error));
+          this.pageError =
+            "Unable to navigate to the destination. Please use a manual option below.";
+        });
+        return;
+      }
+
+      // For web contexts, use window.location.href to redirect to app
       // For mobile, try the deep link URL; for desktop, use the web URL
       const redirectUrl = this.isMobile ? this.deepLinkUrl : this.webUrl;