alexsong-oai f4389de279 Add explicit gateway login control and authentication status (#47170) ...

## What changed

- Add `GatewayLoginControl` so hosts can require caller-initiated browser authorization while retaining automatic login by default.
- Expose passive readiness checks, scoped status subscriptions, and cancellable browser login that reports success after credentials are persisted.
- Return non-retryable request errors for `LoginRequired` and `LoginInProgress`, while preserving retries for transient authentication failures.
- Keep rejected credentials unready until replaced, and prevent slow readiness reads from blocking cached requests or overwriting newer credentials.

## Testing

Add coverage for login cancellation, status notifications, external credential recovery, concurrent credential I/O, legacy automatic login, and request retry behavior.

GitOrigin-RevId: e236d203998ceb6eeaca9704cc05d20ad45f2931

2026-09-22 02:54:53 +00:00

..

src

Add explicit gateway login control and authentication status (#47170)

2026-09-22 02:54:53 +00:00

BUILD.bazel

feat: add opt-in provider runtime abstraction (#17713)

2026-04-17 02:27:45 +00:00

Cargo.toml

Compose gateway OAuth with primary provider authentication (#46490)

2026-09-18 22:42:46 +00:00