OAuth authorization codes are single-use. The appWorkspaceAction wrapper
retries failed calls up to 20 times, but if the code exchange succeeds
and a later step fails, every retry sends the already-consumed code,
producing "bad_verification_code" from GitHub.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Every request was calling getOrCreate on the Rivet engine API
to resolve the workspace actor, even though it's always the same
actor. Cache the handle and invalidate on error so retries
re-resolve. This eliminates redundant cross-region round-trips
to api.rivet.dev on every request.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>