[ptr727]

Summary

Promotes the media parser fuzz gate's retirement to main.

• #570 deletes checks/media_parser_fuzz_gate.py and its step in the validate action. Per OPERATIONS.md "Trust Boundaries", nothing defends the media tooling against crafted files. The fixture builders the media gate tests used move to checks/tests/media_fixtures.py, and the fuzzer's own tests and doc mentions go with it.
• #566 and #568 are develop's copies of the Dependabot action bumps already on main.

Nothing the server sends changes, so no deploy is owed.

Verification

• Retire the Media Parser Fuzz Gate, Since Its Inputs Are Trusted #570's checks, its two recorded local strict review passes, and its Copilot round are on that pull request.
• cd checks && python3 -m unittest discover -s tests passes on develop.

Issues

Closes #549

🤖 Generated with Claude Code

[coderabbitai]

Important

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• Layers: Organization UI
• Review profile: ASSERTIVE
• Plan: Advanced
• Run ID: 3c5c0482-7285-4888-bc50-bac45cf34c70

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[Copilot]

🟢 Approval recommended

No active review issues remain, and the changes consistently remove the retired fuzz gate while updating the referenced reusable workflows.

No open issues 🎉

What changed in this PR

This pull request promotes the retirement of the media parser fuzz gate to main while updating reusable workflow references to ProjectTemplate 2.0.1209. Metadata, redaction, and personal-data validation remain active.

Changes:

• Removes the media parser fuzz gate, validation step, CLI coverage, tests, and documentation.
• Moves reusable media fixture builders into checks/tests/media_fixtures.py.
• Updates reusable workflow pins across validation, release, merge-bot, and deployment workflows.

File	Description
README.md	Removes the retired fuzz-gate documentation.
checks/​tests/​test_media_metadata_gate.py	Uses shared fixtures and removes fuzz-gate-specific tests.
checks/​tests/​test_cli_usage.py	Removes the deleted fuzz gate from CLI coverage.
checks/​tests/​media_fixtures.py	Adds shared constructed-media fixtures.
checks/​README.md	Removes the retired check and related references.
checks/​media_parser_fuzz_gate.py	Deletes the retired fuzz-gate implementation.
.github/​workflows/​test-pull-request.yml	Updates the reusable validation workflow pin.
.github/​workflows/​publish-release.yml	Updates release planning, validation, and build workflow pins.
.github/​workflows/​merge-bot-pull-request.yml	Updates the merge-bot workflow pin.
.github/​workflows/​deploy-site.yml	Updates validation and deployment workflow pins.
.github/​actions/​validate/​action.yml	Removes the retired fuzzing step.

_{Review effort: Lite}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 67.12%. Comparing base (b09f9e4) to head (3b107de).
⚠️ Report is 167 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #571       +/-   ##
===========================================
+ Coverage   53.98%   67.12%   +13.13%     
===========================================
  Files          12       11        -1     
  Lines        3412     2494      -918     
===========================================
- Hits         1842     1674      -168     
+ Misses       1570      820      -750     

Flag	Coverage Δ
python-3.13	67.12% <ø> (+13.13%)	⬆️

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