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>

.env.example

@@ -0,0 +1,35 @@
+# Database Configuration
+DB_HOST=localhost
+DB_PORT=3306
+DB_USER=your_db_user
+DB_PASSWORD=your_db_password
+DB_NAME=5why_analyzer
+
+# Server Configuration
+SERVER_HOST=localhost
+SERVER_PORT=3001
+CLIENT_PORT=5173
+
+# Ollama API Configuration
+OLLAMA_API_URL=https://ollama_pjapi.theaken.com
+OLLAMA_MODEL=qwen2.5:3b
+
+# LLM API Keys (Optional - for admin configuration)
+GEMINI_API_KEY=
+DEEPSEEK_API_KEY=
+OPENAI_API_KEY=
+
+# Session Secret (Generate a random string)
+SESSION_SECRET=your-secret-key-here
+
+# Admin Configuration
+ADMIN_EMAIL=admin@example.com
+ADMIN_PASSWORD_HASH=
+
+# Security
+BCRYPT_ROUNDS=10
+RATE_LIMIT_MAX=100
+RATE_LIMIT_WINDOW_MS=900000
+
+# Environment
+NODE_ENV=development