berkdeniz-oai b38942ce7c Preserve diagnostic reasons for MCP user verification failures (#51808) ...

## Why

User-verification cancellations previously discarded failure reasons, leaving MCP servers unable to distinguish user cancellation from unavailable approval, interruption, or invalid proof.

## What changed

- Carry a bounded `openai/userVerificationReason` value in response `_meta` for verification failures, declines, and cancellations across the TUI, app server, and MCP client.
- Preserve recognized reasons and classify invalid responses, missing or invalid proofs, response errors, closed response channels, interruptions, and unavailable approval.
- Discard unknown reasons and unrelated metadata. Keep proof material out of decline and cancellation responses, and keep display messages and raw error diagnostics out of response metadata.

## Testing

Add and update tests for typed failure propagation, metadata filtering, invalid proofs, response-channel failures, interrupted requests, and unavailable approval, including TUI RPC and native MCP response coverage.

GitOrigin-RevId: 6b7f855ce8eb13e759b5b86d0dc2b1afdfcff7b3

2026-10-07 19:28:14 +00:00

..

src

Preserve diagnostic reasons for MCP user verification failures (#51808)

2026-10-07 19:28:14 +00:00

tests

Preserve diagnostic reasons for MCP user verification failures (#51808)

2026-10-07 19:28:14 +00:00

BUILD.bazel

[3/4] Add executor-backed RMCP HTTP client (#18583)

2026-04-22 17:38:04 -07:00

Cargo.toml

Upgrade Windows bindings to windows-sys 0.61.2 (#50058)

2026-10-01 18:05:05 +00:00