- Introduce `xaiNamespaceRestorer` to track and restore folded dispatcher tool calls across SSE and WebSocket response events.
- Support unwrapping dispatcher tool calls and arguments in `output_item.added` and `function_call_arguments.done` events.
- Normalize historical input namespace tool calls to dispatcher format when namespace folding is active.
Closes: #5214
The xAI executor only switched on response.completed, so any turn that
ended with the spec-correct response.incomplete terminal event fell out
of the loop. Non-streaming requests were reported to the client as a 408
("stream disconnected before response.completed") even though the
upstream request succeeded, and because 408 is retryable it burned
credential rotations against a healthy pool. Streaming requests forwarded
the terminal event without patching the collected output items or
publishing usage.
Accept response.incomplete alongside response.completed in both paths,
mirroring the Codex executor, and keep the reasoning replay cache gated
on response.completed since a truncated turn has no replayable state.
- Propagate request headers into custom-header resolution for OpenAI/Gemini/XAI/Codex execution and websocket flows.
- Resolve auth `header:` values like `$ABC` from incoming request headers at request time and omit headers when no value is available.
- Add documentation for the dynamic custom-header behavior in `config.example.yaml`.
Closes: #5053
- Removed deprecated interceptor and executor-related methods, including `callRequestInterceptor`, `callResponseInterceptor`, and `callStreamChunkInterceptor`.
- Consolidated unused logic and pruned redundant imports to streamline `adapters.go`.
- No functional changes.
