Multi-Provider LLM Gateway

Details

All LLM calls now route through a unified gateway. It handles provider selection, rate limiting, quota enforcement, billing metering, and automatic fallback if a provider is down. Add a new provider by updating one config file. The gateway ensures every AI interaction is tracked, billed, and resilient.

What changed

• Unified routing for all LLM providers
• Automatic quota enforcement and billing metering
• Provider fallback on outages
• Single config for adding new providers