goodman-oai 83a23c0936 Support model catalog Apps usage instructions (#61213) ...

## What changed

- Add the disabled-by-default `catalog_apps_instructions` feature to use the selected model's `model_messages.apps.usage_instructions`, subject to existing Apps availability and model gates.
- Preserve valid catalog text literally, allow an empty string to clear guidance, and fall back to bundled instructions for missing, whitespace-only, or oversized values. Overrides are limited to 800 UTF-8 bytes.
- Reconcile guidance with the latest retained Apps fragment, emitting replacement or removal notices when needed and avoiding repeated updates across resumes. Preserve compatibility with bundled guidance and legacy checkpoints.
- Recognize catalog Apps fragments as contextual developer messages in event mapping and rollout rollback.

## Testing

Add resolver, world-state, client, and scenario coverage for literal text and byte limits, feature and availability gates, model switches, clearing guidance, resumes, and legacy history recovery.

GitOrigin-RevId: 6240d407ada8f22fa101753ff3ddb338632ae283

2026-11-13 00:29:24 +00:00

..

src

Support model catalog Apps usage instructions (#61213)

2026-11-13 00:29:24 +00:00

templates

Simplify Guardian's post-denial approval guidance (#60391)

2026-11-09 12:54:46 +00:00

BUILD.bazel

Allow model catalogs to customize approval instruction headings (#57581)

2026-10-27 22:26:12 +00:00

Cargo.toml

Negotiate realtime voice calls in the TUI (#61172)

2026-11-12 19:43:12 +00:00