9e3347cb71
Backend: - Add dbUsername/dbPassword columns to Application entity - Add optional DB credential fields to CreateApplicationDto - Auto-generate dbPassword (crypto.randomBytes) and default dbUsername='appuser' when databaseType != 'none' on app creation - Store both username and password in K8s DB secret (was password-only) - Read DB_USER/POSTGRES_USER/MYSQL_USER from secretKeyRef instead of hardcoded - New restoreDatabaseDump() in KubernetesService: creates K8s Job with psql/mysql client to restore uploaded SQL dump, waits for completion, returns logs - New POST /applications/:id/db-upload endpoint with 500MB file limit Frontend: - Add dbUsername/dbPassword to Application and CreateApplicationDto types - Deploy page: show username/password fields when database is selected, with generate-random-password button and show/hide toggle - App detail page: new Database section with connection info (host, port, db name, username, password with copy-to-clipboard), SQL dump upload area with drag-and-drop, and restore output logs display Security: - Database remains ClusterIP only (no external exposure) - Credentials stored in K8s Secrets (base64-encoded) - Dump file uploaded as temporary K8s Secret, auto-cleaned after restore