codex-client

Higher-level request policy layered on codex-http-client without any Codex/OpenAI API awareness.

Provides retry utilities (RetryPolicy, RetryOn, run_with_retry, backoff) that callers plug into for unary and streaming calls.
Supplies the sse_stream helper to turn byte streams into raw SSE data: frames with idle timeouts and surfaced stream errors.
Defines the request telemetry callback used by higher-level clients.
Re-exports the low-level HTTP types temporarily so consumers can migrate to codex-http-client incrementally.