chore: add data/requests-trace.jsonl to .gitignore

Add zai

fix unsupported parameters

feat(websocket): track function calls from model responses

fix: validate authorization header format and normalize casing

fix: maintain conversation state in WebSocket handler to preserve function_call context

fix: strip previous_response_id from websocket frames before forwarding to HTTP endpoint

fix: strip type field from websocket frames before forwarding to HTTP endpoint

Add websocket bridge for /v1/responses

fix: downgrade express to v4 to fix path-to-regexp compatibility

fix: use @foxglove/wasm-zstd for cross-platform zstd support

fix: add zstd decompression support for request bodies

cleanup: remove orphaned tmp files on startup

Reject requests with unsupported models using in-memory validation cache

Optimize tracing hot path and precompute stats