fix: sync upstream main with Windows validation and skill guidance cleanup (#457)

* fix: stabilize validation and tests on Windows

* test: add Windows smoke coverage for skill activation

* refactor: make setup_web script CommonJS

* fix: repair aegisops-ai frontmatter

* docs: add when-to-use guidance to core skills

* docs: add when-to-use guidance to Apify skills

* docs: add when-to-use guidance to Google and Expo skills

* docs: add when-to-use guidance to Makepad skills

* docs: add when-to-use guidance to git workflow skills

* docs: add when-to-use guidance to fp-ts skills

* docs: add when-to-use guidance to Three.js skills

* docs: add when-to-use guidance to n8n skills

* docs: add when-to-use guidance to health analysis skills

* docs: add when-to-use guidance to writing and review skills

* meta: sync generated catalog metadata

* docs: add when-to-use guidance to Robius skills

* docs: add when-to-use guidance to review and workflow skills

* docs: add when-to-use guidance to science and data skills

* docs: add when-to-use guidance to tooling and automation skills

* docs: add when-to-use guidance to remaining skills

* fix: gate bundle helper execution in Windows activation

* chore: drop generated artifacts from contributor PR

* docs(maintenance): Record PR 457 sweep

Document the open issue triage, PR supersedence decision, local verification, and source-only cleanup that prepared PR #457 for re-running CI.

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Co-authored-by: sickn33 <sickn33@users.noreply.github.com>

tools/scripts/validate_references.py

@@ -19,7 +19,7 @@ def collect_skill_ids(skills_dir):
     for root, dirs, files in os.walk(skills_dir):
         dirs[:] = [d for d in dirs if not d.startswith(".")]
         if "SKILL.md" in files:
-            rel = os.path.relpath(root, skills_dir)
+            rel = os.path.relpath(root, skills_dir).replace(os.sep, "/")
             ids.add(rel)
     return ids