governance(auto-release): drop update-website-badge job

[ChBrain]

Phase B. The update-website-badge job in auto-release.yml is dead code — KAIHACKS PR #273 (merged) put the version badge on a self-updating path: cultures-map.js reads data.release from available.json on page load and writes both the href and the visible text dynamically.

Why this is now dead code

The job tries to sed-replace two patterns in kaihacks.ai/cultures/public_html/map/index.html:

href="https://github\.com/ChBrain/Cultures/releases/tag/v[\d\.]+"
>v[\d\.]+ &nearr;<

But the actual badge line on KAIHACKS main (post-#273) reads:

<a href="https://github.com/ChBrain/Cultures/releases" class="worldmap__version" ...>download &nearr;</a>

• The href has no /tag/vX.Y.Z suffix
• The visible text has no vX.Y.Z prefix

So on every Cultures release the job runs, both regexes match nothing, the file is unchanged, and the workflow either errors on git commit (no changes) or opens an empty PR against KAIHACKS. That noise stops once this PR lands.

Result

After this change, a Cultures release opens exactly one PR against KAIHACKS — the deliver-available-json job's PR carrying available.json (and groupings.json once that pipeline is live in production). The badge updates client-side from that same available.json on the next page load — no PR needed.

Remaining jobs unchanged

Job	Purpose
release	Cuts the release on main
deliver-available-json	Opens the KAIHACKS PR with manifests
build-zips	Publishes culture/engine/groups zips to the release
build-pdfs	Publishes PDFs to the release

Diff

-65 lines (entire update-website-badge job + its leading comment block).

Verification

Check	Result
python -c "import yaml; yaml.safe_load(open('.github/workflows/auto-release.yml'))"	parses ✅
Jobs remaining	release, deliver-available-json, build-zips, build-pdfs (4/4 expected) ✅
python tests/branch_scope.py advise	governance/<name> (base main) ✅

Ref: ChBrain/KAIHACKS#273, ChBrain/KAIHACKS#268 (superseded)

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