Preserve final headers when forwarding 1xx responses, reject invalid 101 upgrade negotiations, and make the default Via token RFC-safe. Tighten the reverse proxy tests around goroutine synchronization and document the Via fallback behavior more clearly.
Document BufferPool usage and explain why trailer fallback and disconnect compatibility logic intentionally mirror the standard library reverse proxy. Add a regression test covering unannounced trailer forwarding so that proxy trailer behavior stays aligned with Go's semantics.
Provide an RFC-aware reverse proxy handler so Touka services can forward normal, streaming, and upgraded HTTP traffic without leaving the framework. Document the new API and proxy-chain behavior so deployments behind other gateways preserve forwarding metadata correctly.
- Created a detailed \`docs\` directory with Chinese documentation for all major features.
- Implemented \`BaseContext\` propagation in \`Engine\` to allow long-lived connections (like SSE) to receive shutdown signals.
- Added \`Engine.Context()\` to provide access to the shutdown context.
- Updated \`docs/sse.md\` with a guide on handling graceful shutdowns.
- Cleaned up temporary build/update scripts.
Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
Added a comprehensive \`docs\` folder and updated README.md.
Included a specific example in \`docs/sse.md\` demonstrating how to handle \`c.Request.Context().Done()\` for graceful SSE connection closure.
Co-authored-by: google-labs-jules[bot] <161369871+google-labs-jules[bot]@users.noreply.github.com>
