Initial commit: 5 Why Root Cause Analyzer v1.0.0

Phase 0 & Phase 2 completed:
- Project structure setup
- Environment configuration (.env, .gitignore)
- Enterprise-grade dependencies (bcrypt, helmet, mysql2, etc.)
- Complete database schema with 8 tables + 2 views
- Database initialization scripts
- Comprehensive documentation

Database Tables:
- users (user management with 3-tier permissions)
- analyses (analysis records)
- analysis_perspectives (multi-angle analysis)
- analysis_whys (detailed 5 Why records)
- llm_configs (LLM API configurations)
- system_settings (system parameters)
- audit_logs (security audit trail)
- sessions (session management)

Tech Stack:
- Backend: Node.js + Express
- Frontend: React 18 + Vite + Tailwind CSS
- Database: MySQL 9.4.0
- AI: Ollama API (qwen2.5:3b)

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

.gitignore

@@ -0,0 +1,79 @@
+# Environment variables
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# Dependencies
+node_modules/
+jspm_packages/
+package-lock.json
+yarn.lock
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+env/
+venv/
+ENV/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+.DS_Store
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Build outputs
+dist/
+build/
+.next/
+out/
+
+# Testing
+coverage/
+.nyc_output/
+*.lcov
+
+# Temporary files
+*.tmp
+*.temp
+.cache/
+
+# Database
+*.sql
+*.sqlite
+*.db
+
+# Sensitive files
+security_audit.md
+*.key
+*.pem
+*.cert