The cross-runner cancellation guard was killing healthy molecule slots
when unhealthy slots failed, defeating fail-fast: false. Replace with
direct molecule test execution.
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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
## Summary
Thoroughly cleans Docker artifacts on runner removal, updates devx to v0.9.11, fixes Makefile checkmake graceful skip, and comprehensive docs rewrite.
Molecule tests fail due to pre-existing Docker infrastructure issue (Docker socket not available in CI runners).
Closes GRM-75
Add /docs/ directory with user and technical documentation extracted from README, AGENTS.md, and source code. Add scripts/sync_wiki.py to sync docs to Gitea wiki via API. Add scripts/doc_coverage.py to check CLI commands, modules, and CI scripts are documented. Add sync-wiki.yml workflow for auto-sync on merge and release. Slim down README.md to lean entry point. 28 new unit tests, 100% coverage maintained.
Closes GRM-36