feat: Add installation tool, Claude.ai export, and skill standardization (#1)

## Summary

- Add portable installation tool (`install.sh`) for cross-machine setup
- Add Claude.ai export files with proper YAML frontmatter
- Add multi-agent-guide v2.0 with consolidated framework template
- Rename `00-claude-code-setting` → `00-our-settings-audit` (avoid reserved word)
- Add YAML frontmatter to 25+ SKILL.md files for Claude Desktop compatibility

## Commits Included

- `93f604a` feat: Add portable installation tool for cross-machine setup
- `9b84104` feat: Add Claude.ai export for portable skill installation
- `f7ab973` fix: Add YAML frontmatter to Claude.ai export files
- `3fed49a` feat(multi-agent-guide): Add v2.0 with consolidated framework
- `3be26ef` refactor: Rename settings-audit skill and add YAML frontmatter

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

custom-skills/00-our-settings-audit/desktop/examples/sample-audit-report.md

@@ -0,0 +1,76 @@
+# Sample Settings Check Report
+
+## Configuration Summary
+
+| Component | Count | Tokens (est.) | Status |
+|-----------|-------|---------------|--------|
+| MCP Servers | 6 | ~45,000 | ⚠️ High |
+| Active Skills | 3 | ~1,500 | ✓ OK |
+| Project Files | 2 | ~2,000 | ✓ OK |
+| **Baseline Total** | — | ~48,500 | ⚠️ Warning |
+| **Available** | — | ~151,500 (76%) | Marginal |
+
+## Issues Found
+
+### Critical
+1. **GitHub MCP server loading all tools** (~18,000 tokens)
+   - 25+ tools loaded but only 3-4 commonly used
+   - Missing `serverInstructions`
+
+### Warnings
+1. **Zapier MCP enabled** (~25,000 tokens)
+   - 50+ tools, rarely used
+   - Consider disabling
+
+2. **Playwright missing serverInstructions**
+   - Tool discovery inefficient
+   - Add: `"serverInstructions": "Browser automation..."`
+
+3. **Custom skill SKILL.md is 1,500 words**
+   - Exceeds 1,000 word recommendation
+   - Move reference data to separate file
+
+## Recommended Actions
+
+### Immediate (save ~35,000 tokens)
+
+1. **Disable Zapier MCP** (saves ~25,000)
+   ```json
+   // Remove or comment out in claude_desktop_config.json
+   // "zapier": { ... }
+   ```
+
+2. **Add serverInstructions to all servers** (saves ~5,000)
+   ```json
+   "github": {
+     "command": "...",
+     "serverInstructions": "GitHub operations. Use for: repos, issues, PRs. Keywords: github, repo, issue, pull request"
+   }
+   ```
+
+3. **Refactor long skill** (saves ~1,000)
+   - Move data tables to `references/` directory
+   - Keep SKILL.md under 500 words
+
+### Secondary
+
+4. Consider starting fresh conversations for unrelated tasks
+5. Review GitHub usage - if only for viewing, use web instead
+
+## After Optimization
+
+| Component | Tokens (est.) | Status |
+|-----------|---------------|--------|
+| MCP Servers | ~15,000 | ✓ Good |
+| Skills + Files | ~2,500 | ✓ Good |
+| **Baseline Total** | ~17,500 | ✓ Good |
+| **Available** | ~182,500 (91%) | ✓ Excellent |
+
+## Quick Wins Checklist
+
+- [x] Disable Zapier MCP
+- [x] Add serverInstructions to Playwright
+- [x] Add serverInstructions to GitHub
+- [x] Add serverInstructions to Notion
+- [ ] Refactor jamie-brand skill (move procedures data)
+- [ ] Review PostgreSQL usage frequency