feat: Complete Phase 1 - Foundation and Documentation

## Phase 1 Achievements

✅ Repository Structure:
- Created complete directory structure (skills/, evaluations/)
- Updated .gitignore (removed docs/, keep .mcp.json)

✅ MCP Testing:
- Verified n8n API availability (https://n8n-test.n8n-mcp.com)
- Tested MCP tools comprehensively
- Created MCP_TESTING_LOG.md with real tool responses

✅ Documentation:
- README.md: Comprehensive project overview with data-driven insights
- INSTALLATION.md: Complete installation guide for all platforms
- USAGE.md: Detailed usage examples and cross-skill composition
- DEVELOPMENT.md: Development guidelines and contribution process

## Key Insights from MCP Testing

- 537 nodes available (437 base + 100 langchain)
- 2,653 templates with metadata
- nodeType format differences documented
- Webhook data structure clarified ($json.body)
- Auto-sanitization behavior documented
- All n8n_* tools require API; all others don't

## Next: Phase 2 - Skill #1 (n8n Expression Syntax)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en

.gitignore

@@ -1,2 +1 @@
-docs/
 .mcp.json