fix(#2450): widen changelog scope regex and exclude merge commits

[fullsend-ai-coder]

The GoReleaser changelog group regexes used [[:word:]]+ for the scope, which only matches [A-Za-z0-9_]. Commits with # in the scope (e.g. fix(#2343): ...) bypassed group matching and fell to "Others". Replace with [^)]+ so any character except ) is accepted in the scope.

Also add '^Merge ' to filters.exclude so merge commits no longer appear under "Others" in release notes.

Co-Authored-By: Claude Opus 4.6 noreply@anthropic.com

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Closes #2450

Post-script verification

• Branch is not main/master (fix/2450-goreleaser-changelog)
• Secret scan passed (gitleaks — e66a42c38a458aedb7555db3daecd857584ecbae..HEAD)
• Pre-commit hooks passed (authoritative run on runner)
• Tests ran inside sandbox

[github-actions]

E2E tests did not run

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For other contributors, a maintainer must add the ok-to-test label after the latest push.

See E2E testing guide for details.

[github-actions]

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Commit: e766cb50de93cef64d8688e99a9311df79a136e8

[fullsend-ai-review]

🤖 Finished Review · ✅ Success · Started 6:42 AM UTC · Completed 6:49 AM UTC
Commit: e766cb5 · View workflow run →

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[fullsend-ai-review]

Looks good to me

[fullsend-ai-retro]

🤖 Finished Retro · ✅ Success · Started 11:48 AM UTC · Completed 11:56 AM UTC
Commit: e766cb5 · View workflow run →

[fullsend-ai-retro]

Retro: PR #2451 — fix(#2450): widen changelog scope regex and exclude merge commits

This was a clean, efficient workflow. The code agent fixed GoReleaser changelog regex patterns in a single commit, the review agent approved correctly, and a human merged after ~5 hours.

Timeline: Issue #2450 created (06:22) → Triage (06:22–06:32, one cancelled by concurrency group, one succeeded) → Code agent (06:32–06:39, single commit) → Review agent approved (06:39–06:49) → Human approved (11:32) → Merged (11:43).

No new proposals. All potential improvements are already covered by existing open issues:

• Redundant review dispatch after merge: A pull_request_review event from the human approval at 11:32 triggered review run 27823769621 at 11:45 — after the PR was already merged at 11:43. This is covered by #1870 (skip dispatch when PR is closed), #963 (skip when HEAD already approved), and #1125 (filter pull_request_review to only changes_requested).

• Cancelled triage run: First triage run was superseded by concurrency group after ~40s of agent work. This is the system working as designed; issues #1014 and #981 track further debounce improvements.

• Thin review comment: The review agent's "Looks good to me" is appropriate for a 3-line config regex fix. No action needed.