Convert the remaining `Effect.sleep(50)` synchronization hacks in
`prompt.test.ts` to either `Effect.yieldNow` or `waitFor` against
`SessionStatus`, mirroring the pattern already used elsewhere in the
file. Same motivation as the previous commit: stop making correctness
depend on how quickly CI schedules fibers.
- "concurrent loop callers all receive same error result": yieldNow
before resolving the gate, so the queued caller joins the run on a
scheduler turn instead of a 50ms window.
- "loop waits while shell runs ..." / "shell completion resumes
queued loop callers": yieldNow before asserting `llm.calls === 0`
while the shell is still running. The shell is already gated on
`waitFor("shell busy", ...)`.
- "cancel interrupts loop queued behind shell": waitFor shell busy
before forking the loop, then yieldNow before cancelling.
- "shell rejects when another shell is already running": waitFor
shell busy before issuing the second shell call.
The `Effect.sleep(20)` at line 93 is the poll interval inside the
`waitFor` helper itself and is left unchanged.
Mark IJbema
3a360a8951