## What changed
- Resolve per-server tool catalogs concurrently in `list_all_tools` and binding capture.
- After the shared startup wait, recheck servers that previously exposed cached tools so a newly ready client contributes its current catalog and callable client.
## Testing
- Add gated-client tests that verify multiple server catalogs start before any one server is released.
- Verify binding capture replaces cached Codex Apps tools with the ready client's tools when startup completes during capture.
GitOrigin-RevId: a30d1a535ed1588f2bba21f2741e8bbd9342e339