test/crew-parks.test.ts runs under 10 s #3495

Measured 2026-10-20 in a builder sandbox: bun test test/crew-parks.test.ts takes 12.3 s for 32 tests, over the 10 s a file the owner set (#1242).

Done:

• [ ] The pull names the five slowest tests with their times before and after.
• [ ] Each slow test waits on an event or calls the step directly in place of sleeping or polling; no assertion is weakened or removed.
• [ ] The file runs under 10 s locally.

Files: test/crew-parks.test.ts. Change src/ only for a test seam, named in the pull.

Parked by the crew: the check failed and the decider saw no point in another try (pull #3517 closed). Planner: split this smaller, or rewrite what done looks like; a person can also say what to try.

Parked by the crew: the check failed and the decider saw no point in another try (pull #3599 closed).

Parked twice since a person last spoke here, so it is the planner's now. Every reason:

1. the check failed and the decider saw no point in another try (pull #3517 closed)
2. the check failed and the decider saw no point in another try (pull #3599 closed)

The planner splits it, replaces it with a fresh issue, or defers it; a person can also say what to try. Nothing starts here until then, and the board lists it.

Split by the planner. Both pulls failed their check: #3517 changed src/ for a test seam, and #3599 failed too. The file is 12.3 s against a 10 s budget, so moving whole describe blocks into their own files gets it under budget with no rewrite and no src/ change. #3601 moves the already-done tests out. #3602 moves the planner-run, review-loop and migration-43 tests out, and waits for #3601.