fix(publish): extend state lease wait to eight minutes

[brokemac79]

Summary

• preserve fix(repair): let apply-lane publishers out-wait state lease contention #730's configurable state-lease timeout and 900-second apply-lane overrides
• extend the normal review/result publisher fallback from 180 seconds to 480 seconds
• leave the temporary exact-publication capacity fixed at 50 workers

Problem

PR #730 repairs the separate apply-lane starvation by setting a 900-second override on three rare apply jobs. It intentionally leaves normal review/event result publishers on the 180-second fallback. Post-#729 production evidence showed those normal publishers still dominated by 180-second StatePublishContentionError failures.

Implementation

After rebasing onto #730's merge commit, this changes only its fallback from 3 * 60_000 to 8 * 60_000. The CLAWSWEEPER_STATE_LEASE_ACQUIRE_TIMEOUT_MS override, three 900000 apply-lane settings, 30-minute cap, publication capacity, lease TTL, polling, queue state, retries, gates, and dispatch behavior remain unchanged.

Validation

• branch diff versus current origin/main: one line in src/repair/git-publish.ts
• verified all three fix(repair): let apply-lane publishers out-wait state lease contention #730 workflow overrides remain 900000
• verified fix(repair): let apply-lane publishers out-wait state lease contention #730's configured-timeout cap remains 30 minutes
• normal required GitHub checks run on the rebased head

No additional local test, Codex review, or ClawSweeper review was run at the maintainer's explicit request.

Risk and rollout

Normal contending publishers may remain leased for up to eight minutes before returning to the durable queue. Apply-lane publishers retain #730's 15-minute override. Queue depth, useful GitHub delivery, retry amplification, and state-contention failures remain under active monitoring.

Related: #729, #730, and CSW-049.