feat: implement zero-config local filesystem storage driver for out-of-the-box file uploads on Hugging Face Spaces

Fix OpenAI API key crash, implement Eternity Dashboard page, add sidebar menu, and configure API proxy bridge

Cap database connection pool size at 3 to respect Aiven connections ceiling

Fix npx permission issue in Stdio transport by injecting /tmp fallbacks

Inject openai compatible config as fallback

Initial commit for HF Spaces