Fix missing imports in admin config page

- Add missing set_* function imports to admin.py config route
- Resolve NameError when saving admin configuration

vidai/admin.py

@@ -287,7 +287,13 @@ def config():
             set_smtp_server, set_smtp_port, set_smtp_credentials, set_smtp_security,
             set_stripe_keys, set_paypal_credentials, set_crypto_addresses,
             set_base_url, set_db_type, set_db_sqlite_path, set_db_mysql_config,
-            set_web_host, set_web_port, set_backend_host, set_backend_web_port, set_backend_worker_port
+            set_web_host, set_web_port, set_backend_host, set_backend_web_port, set_backend_worker_port,
+            set_analysis_backend, set_training_backend, set_default_model, set_default_model_type,
+            set_frame_interval, set_optimize, set_ffmpeg, set_flash, set_runpod_enabled,
+            set_runpod_api_key, set_runpod_template_id, set_runpod_gpu_type, set_use_runpod_pods,
+            set_host, set_port, set_debug, set_allowed_dir, set_comm_type, set_max_concurrent_jobs,
+            set_cluster_host, set_cluster_port, set_cluster_token, set_redis_host, set_redis_port,
+            set_redis_db, set_redis_password
         )
 
         # Registration