Reorganize: Move all skills to skills/ folder

- Created skills/ directory
- Moved 272 skills to skills/ subfolder
- Kept agents/ at root level
- Kept installation scripts and docs at root level

Repository structure:
- skills/           - All 272 skills from skills.sh
- agents/           - Agent definitions
- *.sh, *.ps1       - Installation scripts
- README.md, etc.   - Documentation

Co-Authored-By: Claude <noreply@anthropic.com>

skills/plugins/claude-hud/SUPPORT.md

@@ -0,0 +1,16 @@
+# Support Policy
+
+This project is maintained on a best-effort basis.
+
+## What We Support
+
+- The latest release
+- Claude Code versions documented in `README.md`
+- Node.js 18+ or Bun
+
+## How to Get Help
+
+- Open a GitHub issue for bugs or feature requests
+- For security issues, see `SECURITY.md`
+
+We cannot guarantee response times, but we will triage issues as time allows.