## Why
A provisioned executor can still be resuming after readiness is reported. Initial connection attempts can exhaust the ordinary registry retry limits before the executor comes online.
## What changed
Retry `environment_offline` registry responses during initial Noise rendezvous connections for provisioned environments until a fixed five-minute deadline, starting after provisioning succeeds. Keep the existing retry limits for other registry errors and stop on permanent failures.
## Testing
Add tests covering the five-minute deadline, ordinary limits for other errors and stalled requests, and termination on a later permanent error. Verify that readiness and info requests remain pending through an extended offline period and succeed using the same environment handle once the executor comes online.
GitOrigin-RevId: e22211499d9ec2f3590e75224eb39e2e4bf3538d