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>

src/index.css

@@ -0,0 +1,17 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+    monospace;
+}