gofmt -l reported 13 files with misaligned struct tags / stale formatting. This commit contains ONLY formatting: no behaviour change, no logic touched. Files that also carry real changes in this series are formatted by their own commits.
- Lua adapters per upstream (transform_request/response/stream_chunk, build_headers signing hooks) - AUTO priority routing with per-model kind (chat/image), explicit source/model routing - Per-source concurrency caps with queueing, exponential backoff, AUTO failover - OpenAI-compatible API: chat completions, SSE streaming, image generations, models - Gateway key auth, web UI for adapter/source management, runtime persistence - e2e test running the real binary against mocked upstreams