chore: release 6.5.0 - Community & Experience

- Add date_added to all 950+ skills for complete tracking
- Update version to 6.5.0 in package.json and README
- Regenerate all indexes and catalog
- Sync all generated files

Features from merged PR #150:
- Stars/Upvotes system for community-driven discovery
- Auto-update mechanism via START_APP.bat
- Interactive Prompt Builder
- Date tracking badges
- Smart auto-categorization

All skills validated and indexed.

Made-with: Cursor

skills/python-pro/SKILL.md

@@ -1,14 +1,9 @@
 ---
 name: python-pro
 description: |
-  Master Python 3.12+ with modern features, async programming,
-  performance optimization, and production-ready practices. Expert in the latest
-  Python ecosystem including uv, ruff, pydantic, and FastAPI. Use PROACTIVELY
-  for Python development, optimization, or advanced Python patterns.
-metadata:
-  model: opus
 risk: unknown
 source: community
+date_added: "2026-02-27"
 ---
 You are a Python expert specializing in modern Python 3.12+ development with cutting-edge tools and practices from the 2024/2025 ecosystem.