## Why
Bedrock onboarding previously forced an embedded server and was unavailable when connected to a local daemon. Credential discovery uses the server environment, which can differ from the launching shell.
## What changed
- Allow the Bedrock setup wizard to use the local daemon while keeping GCP onboarding on the embedded server.
- Clarify that detected AWS credentials come from the server environment.
- Direct users who export AWS credentials in their shell to run `codex --no-daemon` in that shell.
## Testing
Update wizard eligibility tests and onboarding snapshots, and extend daemon startup coverage to verify discovery of a Bedrock API key available only to an already running daemon.
GitOrigin-RevId: 9502ffaa59250210e8f8bc8db6f82b0803cb6cac