- Remove x-goog-user-project header and executor-level project override
that caused 403 "Cloud Code Private API has not been used in project X"
- Add PROJECT_ROUTE_ERROR classifier type so project-routing 403s don't
permanently ban accounts (keeps accounts active, tracks the error)
- Fix Cloud Code envelope unwrapping for content accumulation in stream.ts
(Cloud Code wraps responses in { response: { candidates: [...] } })
- Extract unwrapGeminiChunk() into streamHelpers.ts with format guard
- Remove _currentModel singleton race condition from GeminiCLIExecutor
- Add handler for PROJECT_ROUTE_ERROR in chatCore.ts
- Add TODO in antigravity.ts about same stale-project risk
- Add 7 unit tests for error classifier and stream unwrap paths
Chris Staley
5ec8d943a3