fix(worker): Remove repo/commit from LockRetry message for proper Sentry grouping

[drazisil-codecov]

Problem

PR #668 removed the lock name from the LockRetry error message but left Repo: {repoid}, Commit: {commitid} in the message. Since each repo/commit combination is unique, Sentry was still creating separate issues for each occurrence instead of grouping them together.

Evidence from production (release production-release-482156a):

• WORKER-WYP - "Lock acquisition failed after 11 retries (max: 11). Repo: 21784895, Commit: a45b..."
• WORKER-WYN - "Lock acquisition failed after 11 retries (max: 11). Repo: 7098251, Commit: bb05..."

Solution

Remove repo and commit from the error message string entirely. The message is now just:

Lock acquisition failed after 11 retries (max: 11).

All identifying information remains available in:

• Exception attributes (exc.lock_name, exc.repoid, exc.commitid)
• Sentry context (lock_acquisition context with full details)
• Sentry tags (lock_name, lock_type)

Test Plan

• Existing tests pass (27 tests in test_lock_manager.py)
• Monitor Sentry to confirm new errors are properly grouped under a single issue

Fixes CCMRG-2031

---

Note

Makes LockRetry exception message generic to improve Sentry issue grouping while preserving identifiers in attributes and Sentry context/tags.

• Updates LockRetry.__init__ to remove repoid/commitid from the max-retries error message; adds comment explaining grouping rationale
• No changes to lock acquisition logic, retries, backoff, or Sentry logging/capture apart from the message text

^{Written by Cursor Bugbot for commit cfcc482. This will update automatically on new commits. Configure here.}

[linear]

CCMRG-2031 Remove lock name from LockRetry error message to improve Sentry grouping

[sentry]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.53%. Comparing base (482156a) to head (cfcc482).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #673      +/-   ##
==========================================
- Coverage   92.53%   92.53%   -0.01%     
==========================================
  Files        1295     1295              
  Lines       47678    47677       -1     
  Branches     1592     1592              
==========================================
- Hits        44121    44120       -1     
  Misses       3248     3248              
  Partials      309      309              

Flag	Coverage Δ
workerintegration	58.48% <100.00%> (-0.01%)	⬇️
workerunit	90.14% <100.00%> (-0.01%)	⬇️

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

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