Francis Chalissery eb147c0db3 Surface misalignment policy violations as typed errors (#38682) ...

## What changed

- Recognize `misalignment_policy_violation` errors from response streams and HTTP 400 or 403 responses.
- Preserve the upstream message, use a fallback for blank messages, and treat the error as non-retryable.
- Expose `misalignmentPolicyViolation` through the app-server protocol and generated schemas so turns fail with a typed terminal error.

## Testing

- Cover streamed and HTTP policy violations, fallback messages, retry behavior, and app-server turn completion.

GitOrigin-RevId: fd3485bf0be7bfe3d51c078bbc36a081692fd57f

2026-08-15 01:34:33 +00:00

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src

Surface misalignment policy violations as typed errors (#38682)

2026-08-15 01:34:33 +00:00

BUILD.bazel

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Cargo.toml

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