feat: Mount LoRRI integration router in main app + always init DB + open CORS for production

feat: Add __init__.py for integrations module (#10)

feat: Add LoRRI production integration adapter - webhooks, auth middleware, rate limiting, SDK (#9)

feat: Always init DB on startup (required for SQLite fallback), add /api/v1/health endpoint (#5)

feat: Add SQLite fallback for database - enables deployment without PostgreSQL (#1)

Upload folder using huggingface_hub