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/RELEASING.md

@@ -0,0 +1,24 @@
+# Releasing
+
+This project ships as a Claude Code plugin. Releases should include compiled `dist/` output.
+
+## Release Checklist
+
+1) Update versions:
+   - `package.json`
+   - `.claude-plugin/plugin.json`
+   - `CHANGELOG.md`
+2) Build:
+   ```bash
+   npm ci
+   npm run build
+   npm test
+   npm run test:coverage
+   ```
+3) Verify plugin entrypoint:
+   - `.claude-plugin/plugin.json` points to `dist/index.js`
+4) Commit and tag:
+   - `git tag vX.Y.Z`
+5) Publish:
+   - Push tag
+   - Create GitHub release with notes from `CHANGELOG.md`