Implement backend API and database services in Docker setup

- Added a new `api` service for the NestJS backend, including health checks and dependencies on PostgreSQL, Redis, and MinIO.
- Introduced PostgreSQL and Redis services with health checks and configurations for data persistence.
- Added MinIO for S3-compatible object storage and a one-shot service to initialize required buckets.
- Updated the Nginx configuration to proxy requests to the new backend API and MinIO storage.
- Enhanced the Dockerfile to support the new API environment variables and configurations.
- Updated the `package.json` and `package-lock.json` to include new dependencies for QR code generation and other utilities.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/composables/useAccounts.ts

@@ -131,14 +131,18 @@ export function useAccounts() {
   }
 
   /**
-   * Logout current account
+   * Logout current account.
+   * removeAccount already clears the active account if it's the one being removed.
    */
   function logout() {
     const current = accountManager.active
     if (current) {
-      accountManager.removeAccount(current)
+      try {
+        accountManager.removeAccount(current)
+      } catch (err) {
+        console.debug('Account removal cleanup:', err)
+      }
     }
-    accountManager.setActive(null as any)
   }
 
   /**