chore: sync workflow validation fixes from agents review

[coisa]

Summary

Follow-up workflow-sync fixes requested by CodeRabbit review feedback in the agents repository context, then propagated to this branch after the rebase sequence.

Included changes

• resources/github-actions/auto-resolve-conflicts.yml: keep branch filter declaration stable and explicit in the reusable workflow definition.
• resources/github-actions/changelog.yml: tighten changelog dispatch condition for pull request target execution context.
• .github/workflows/label-sync.yml: adjust permissions so label sync can apply updates when intended.
• docs/_static/mascot-banner.png: synchronize managed static asset state from the reviewed source.
• .github/wiki submodule pointer: keep pointer aligned to the expected managed commit (generated by sync flow).

Notes

• Temporary .github/mcp.json experiment was removed and not included.
• .gitattributes test-only line (.github/workflows/*.lock.yml linguist-generated=true merge=ours) was intentionally removed from this PR.

Related

• Originated from corrections surfaced in agents workflow-validation review.

[coderabbitai]

📝 Walkthrough

Walkthrough

This PR updates GitHub Actions workflow configurations to refine permissions and conditional execution logic, advances the wiki submodule reference, and documents these fixes in the changelog. Three workflow files receive targeted updates for permission scoping and trigger conditions; the wiki pointer is synchronized to a new revision.

Changes

Workflow Configuration and Git Artifacts

Layer / File(s)	Summary
Workflow permissions and execution conditions .github/workflows/label-sync.yml, resources/github-actions/auto-resolve-conflicts.yml, resources/github-actions/changelog.yml	Label-sync workflow gains issues: write permission. Auto-resolve-conflicts push trigger branches list is reformatted. Changelog job receives a conditional guard to run only for pull_request events or merged pull_request_target events.
Wiki submodule reference update .github/wiki	Wiki submodule commit SHA is updated to reference a new revision.
Changelog documentation CHANGELOG.md	Unreleased → Fixed section entry documents the workflow validation sync fix including workflow metadata, managed asset references, dispatch conditions, label-sync permissions, and submodule/wiki pointer alignment.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Poem

A rabbit hops through workflows with care,
Permissions granted, conditions fair—
The wiki spins 'round to a brand new place,
While CHANGELOG notes the sync's gentle grace. ✨🐰

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description check	✅ Passed	The description is substantially complete, providing a clear summary of included changes and notes, though it deviates from the standard template structure by using custom section headings instead of the repository's prescribed template format.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title references 'workflow validation fixes from agents review' which aligns with the PR objectives describing workflow-sync fixes and corrections from an agents repository review.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/344-skip-reports-tests-when-unavailable

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[github-actions]

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