90b134ca4c
- Added `providerRetryWait` and `retryWait` hooks to stream/usage options so tests bypass real scheduler delays. - Parameterized GitHub Copilot poll intervals and Copilot model retry base delay for fast test execution. - Replaced `Bun.sleep`/`setTimeout` polling loops with `AbortSignal` event listeners in agent session tests. - Consolidated auth-gateway E2E helpers into a shared `test/helpers` module, eliminating duplicated `checkGatewayAvailable` implementations. - Migrated credential-disabled tests from SQLite-backed stores to an in-memory store, removing temp-dir lifecycle overhead.