jif 67fb9da4b6 Preserve safe enterprise MCP authentication error details (#56153) ...

## Why

Enterprise MCP token exchange and sign-in failures can collapse into generic errors, hiding useful diagnostics such as an OAuth `invalid_scope` rejection or a cancelled sign-in.

## What changed

Introduce `EmaErrorDetail` to carry static operation messages and sanitized SDK diagnostics through token-source errors and enterprise login completion. Exchange failures can report the stage, HTTP status, and allowlisted OAuth error code, such as `IdentityProvider: HTTP 400: invalid_scope`, without retaining arbitrary provider text or raw error chains.

Preserve specific discovery, credential storage, cancellation, and account/configuration mismatch errors instead of replacing them with generic failure messages.

## Testing

Extend tests to cover `invalid_scope` diagnostics, specific sign-in completion errors, and exclusion of credentials from diagnostics even when an outer error context contains sensitive text.

GitOrigin-RevId: e9280a5db3565ea91da0810bab528da5ee088d64

2026-10-22 11:51:23 +00:00

..

src

Preserve safe enterprise MCP authentication error details (#56153)

2026-10-22 11:51:23 +00:00

tests

Propagate authentication header failures before sending requests (#55607)

2026-10-20 15:43:19 +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