db(couchdb): auto-provision databases on startup for production strategy; add TokenService with CouchDB-backed token storage and localStorage fallback; switch OAuth to unified config for client IDs and redirect URI; express Request typing for req.user; align exportAsEnvVars with show-config expectations; remove Vite importmap from index.html; prefer babel-jest over ts-jest; remove duplicate uuid mocking from Jest config

services/database/ProductionDatabaseStrategy.ts

@@ -28,6 +28,11 @@ export class ProductionDatabaseStrategy implements DatabaseStrategy {
       url: dbConfig.url,
       username: dbConfig.username,
     });
+
+    // Provision required databases on startup (non-blocking)
+    this.initializeDatabases().catch(error => {
+      logger.db.error('Failed to initialize databases', error as Error);
+    });
   }
 
   private async initializeDatabases(): Promise<void> {