Replace the single fixed 300ms capture-pane delay in `agent send --verify` with a
bounded polling loop. After sending, the loop polls `capture-pane` every 400ms
(VERIFY_POLL_INTERVAL_MS) up to a configurable total timeout (default 6000ms,
VERIFY_DEFAULT_TIMEOUT_MS). classifySendResult is called on each poll: accepted/draft
return immediately; unverifiable keeps polling until timeout, then fails closed with
the existing "no pane change after send" message.
New `--verify-timeout <ms>` option on `agent send` (default 6000ms documented).
Injectable SleepFn added to FleetCommandDeps for test isolation — no real sleeps in
tests. Exports VERIFY_POLL_INTERVAL_MS and VERIFY_DEFAULT_TIMEOUT_MS as constants.
classifySendResult and all other pure functions remain unchanged.
Tests: multi-poll acceptance on 2nd/3rd poll => exit 0; pane unchanged until timeout
=> exit 1; draft detected on first poll => exit 1. All 386 tests pass.
docs/fleet/PRD.md Known-limitations updated: verify now polls up to bounded timeout
(default ~6s, --verify-timeout); definitive acceptance still deferred to Phase-3
heartbeat-ack.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RMoEx7hfdFGjUiCHuN1RRi
dd10f0046b