ci: consolidate PR workflows into one CI workflow with an all-green gate

[Primajin]

Summary

Consolidates the three PR-check workflows (jsdoc, lint, test) into a single ci.yml, each preserved as its own job, and adds an All checks green aggregator so a single required status can gate the PR.

Structure mirrors the validated reference template (Primajin/Gyros ci.yml):

• One workflow on push: [main] + pull_request: [opened, reopened, synchronize, closed].
• Each former workflow becomes a job carrying its own permissions: (copied from the origin workflow's top-level permissions; contents: read where the origin had none).
• Each consolidated job keeps its original push+PR trigger intent via if: github.event_name == 'push' || github.event.action != 'closed'.
• A final all-green job named exactly All checks green (if: always(), needs: every other job) fails if any job failed or was cancelled.
• Node bumped to '24' to match the reference idiom.

Left separate (untouched)

• codeql-analysis.yml
• release-please.yml

Removed

• .github/workflows/jsdoc.yml
• .github/workflows/lint.yml
• .github/workflows/test.yml

Notes

• The gh-pages concurrency group from jsdoc.yml is preserved at the workflow top level (matching the reference).
• lint retains its original permissions: write-all; jsdoc and test get contents: read.

🤖 Generated with Claude Code

[Primajin]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (8db15bd) to head (773fd65).

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #276   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            2         2           
  Lines           95        95           
=========================================
  Hits            95        95           

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