## What changed
Add `features.multi_agent_v2.message_board_remote` with a board URL and a bearer token supplied directly or through an environment variable. When configured, use the remote board in preference to local or in-memory storage, including in ephemeral sessions, while preserving the existing board tools and session identity.
Ignore remote board settings in project-local configuration and use the runtime HTTP client and clock for remote requests.
## Testing
Add a mock-server integration test and snapshot covering an ephemeral session posting through the existing tool, with the expected bearer authentication, session identity, timestamp, and returned post.
GitOrigin-RevId: 263413d90a1ee4c0bdba8c1b08ba9f68bdd7a986
## What changed
- Move `Provider` and `RetryConfig` into `codex-client`, retaining re-exports from `codex-api`, and switch `codex-model-provider-info` to depend on `codex-client`.
- Move feature-state metric emission into `codex-core`, preserving its behavior while removing the `codex-features` dependency on `codex-otel`.
- Explicitly enable TLS features for `tonic` in `codex-config` and `reqwest` in `codex-http-client`.
- Enable `png`'s `zlib-rs` feature directly in `codex-utils-image` to keep encoded PNG bytes stable when WebSocket dependencies are absent.
GitOrigin-RevId: 91fd63ab01b55d516b3e80e3644d06af8d5a01f6
## Why
Credential brokerage must retain trusted destination hints even when shell environment policy hides them from child processes. Snapshot replay also needs to preserve credential aliases when tokens are short or captured dummy values change.
## What changed
- Add `features.network_proxy.credentials` and preserve provider settings when toggling the proxy. Prevent project configuration from overriding providers or their credential and destination environment variables.
- Use provider metadata throughout snapshot capture and replay, and pass hidden destination context to the broker without exposing it in the child environment.
- Rewrite aliases containing short credentials or previously captured dummies, respecting environment filters and explicit overrides.
- Preserve case-distinct `shell_environment_policy.set` keys so Windows credential ambiguity checks survive configuration merging and permission profile changes.
- Restore independent MITM settings when credential brokerage is disabled.
## Testing
Add regression coverage for custom providers, hidden destination hints, Bash and Zsh alias replay, configuration edits and merging, Windows ambiguity handling, and credential protection during approved execution.
GitOrigin-RevId: b2bd935d2d8555be56baf8feb1a8e5b3a0c666bc
- Split the feature system into a new `codex-features` crate.
- Cut `codex-core` and workspace consumers over to the new config and
warning APIs.
Co-authored-by: Ahmed Ibrahim <219906144+aibrahim-oai@users.noreply.github.com>
Co-authored-by: Codex <noreply@openai.com>
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