Vivian Fang 4b24638e1c Prewarm code-mode host connections at session startup (#40678) ...

## What changed

- Add the opt-in `code_mode_prewarm` feature to establish the code-mode host session during startup, before the first turn.
- Make in-progress host initialization cancellable so a stalled prewarm does not block shutdown.
- Share a failed connection attempt with concurrent callers instead of immediately starting another attempt.

## Testing

- Verify app-server contacts the configured host before the first turn and can shut down while that connection is stalled.
- Exercise shared remote-host behavior with prewarming enabled.

GitOrigin-RevId: 3cfde5509be7b4aba80112c36c5616b9a9b632c6

2026-08-25 19:16:45 +00:00

..

src

Prewarm code-mode host connections at session startup (#40678)

2026-08-25 19:16:45 +00:00

BUILD.bazel

Code mode on v8 (#15276)

2026-03-20 23:36:58 -07:00

Cargo.toml

Route gRPC code-mode sessions through the shared HTTP client (#38087)

2026-08-11 23:40:07 +00:00