- Use `context.AfterFunc` and buffered delivery in websocket relay sessions to avoid per-request goroutine leaks.
- Synchronize in-flight puts and drain queued connections upon mux listener close.
- Ensure home streaming log writer goroutines terminate cleanly when the log client is unhealthy.
- Prevent integer arithmetic overflow in token breakdown validations and calculations.
- Clone request headers in logging middleware to prevent concurrent mutation issues.
- Implement standard `io.WriterTo` return signature for file body sources.
Closes: #4709
- 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.
