feat(review): add auto_pause_after_reviewed_commits knob (#2042)

[RealDiligent]

Summary

• Add review.auto_review.auto_pause_after_reviewed_commits (feat(config): add review.auto_review.auto_pause_after_reviewed_commits knob #2042) - caps AI re-review spend on churny PRs.
• Skip with audit review paused (commit threshold) when published review count reaches threshold; never a gate failure.
• Completes the last Auto-review eligibility filters (skip drafts, bot authors, WIP titles, base-branch scope, auto-pause) #1954 eligibility filter knob.

Closes #2042

Part of #1954. Supersedes closed #3501/#3502.

Test plan

• npm run typecheck
• Unit + wiring + queue integration tests
• CI green including codecov/patch ?99%

[superagent-security]

Superagent didn't find any vulnerabilities or security issues in this PR.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.08%. Comparing base (812efca) to head (8d6117e).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3503   +/-   ##
=======================================
  Coverage   93.08%   93.08%           
=======================================
  Files         300      300           
  Lines       31402    31416   +14     
  Branches    11462    11468    +6     
=======================================
+ Hits        29230    29244   +14     
  Misses       1517     1517           
  Partials      655      655           

Files with missing lines	Coverage Δ
src/db/repositories.ts	96.51% <100.00%> (+<0.01%)	⬆️
src/queue/processors.ts	93.53% <100.00%> (+<0.01%)	⬆️
src/signals/focus-manifest.ts	98.81% <100.00%> (+0.01%)	⬆️

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[loopover-orb]

Important

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🔍 Gittensory is reviewing…

AI analysis is in progress. This comment will update when the review is complete.

_{🟩 Safe / merged · 🟦 Advisory · 🟨 Held for review · 🟥 Blocked / closed · 🟪 Reviewing}

[loopover-orb]

Gittensory approves — the gate is satisfied and CI is green.