Share the java-tdd-guide pointer file across the four repositories (4-repo sync)

[bernardladenthin]

Summary

• workspace/CLAUDE.md says every sibling repository carries .claude/skills/java-tdd-guide/SKILL.pointer.md, the marker that tells a human reader (and any drift tooling) where the canonical Java TDD skill lives and why the workspace repository must be in the session scope. A cross-repo audit found only this repository and BitcoinAddressFinder had it, with two slightly different copies; java-llama.cpp and srcmorph had none.
• One byte-identical file in all four repositories, listed in every .github/shared-files.sha256, so the shared-files job keeps it equal from here on (hash b191c691…). The content is this repository's, which names no repository, so a plain entry suffices (no ?repo). Here only the manifest line is new; the file itself is unchanged.
• Sibling PRs on the same branch name: java-llama.cpp #493 (bundled with its patch-hunk guard), BitcoinAddressFinder #382, srcmorph #219. Until all four are merged, the shared-files job may warn about a sibling's default branch; that is the documented four-step sync, not a failure.

Test plan

• python3 -m unittest discover -s .github/buildcheck/tests -t .github green in all four repositories (the manifest test included).
• python3 .github/check-shared-files.py reports nothing in each repository; the four copies are byte-identical.
• CI green on this branch.

Related issues / PRs

bernardladenthin/java-llama.cpp#493, bernardladenthin/BitcoinAddressFinder#382, bernardladenthin/srcmorph#219.

Checklist

• I have read CONTRIBUTING.md and CODE_OF_CONDUCT.md
• My commits follow Conventional Commits. They use the repository's usual imperative style instead.
• No security-sensitive changes.

🤖 Generated with Claude Code

https://claude.ai/code/session_01AytmJF9faEiQEVt6eetQS2

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Generated by Claude Code

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.99%. Comparing base (2848d87) to head (06679e3).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #175   +/-   ##
=========================================
  Coverage     96.99%   96.99%           
  Complexity      116      116           
=========================================
  Files             1        1           
  Lines           266      266           
  Branches         29       29           
=========================================
  Hits            258      258           
  Misses            2        2           
  Partials          6        6           

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[coveralls]

Coverage is 99.248% — claude/hopeful-pascal-9jlbqb into main. No base build found for main.