feat: disable Swagger UI in LiteLLM proxy

- Add --disable_swagger flag to LiteLLM command
- Improves security by hiding API documentation interface

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

ai/compose.yaml

@@ -110,7 +110,8 @@ services:
         '--port',
         '4000',
         '--detailed_debug',
-        '--drop_params'
+        '--drop_params',
+        '--disable_swagger'
       ]
     depends_on:
       - ai_postgres