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>

scripts/init-database-simple.js

@@ -0,0 +1,75 @@
+import fs from 'fs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+import mysql from 'mysql2/promise';
+import dotenv from 'dotenv';
+import bcrypt from 'bcryptjs';
+
+dotenv.config();
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+const dbConfig = {
+  host: process.env.DB_HOST,
+  port: parseInt(process.env.DB_PORT),
+  user: process.env.DB_USER,
+  password: process.env.DB_PASSWORD,
+  database: process.env.DB_NAME,
+  multipleStatements: true
+};
+
+async function initDatabase() {
+  let connection;
+
+  try {
+    console.log('\n╔════════════════════════════════════════════╗');
+    console.log('║  5 Why Analyzer - Database Initialization ║');
+    console.log('╚════════════════════════════════════════════╝\n');
+
+    console.log('🔄 Connecting...');
+    connection = await mysql.createConnection(dbConfig);
+    console.log('✅ Connected\n');
+
+    // 生成密碼 hash
+    const adminPassword = process.env.ADMIN_PASSWORD || 'Admin@123456';
+    const adminHash = await bcrypt.hash(adminPassword, 10);
+
+    // 讀取並執行 SQL
+    const sqlPath = path.join(__dirname, '../docs/db_schema.sql');
+    let sqlContent = fs.readFileSync(sqlPath, 'utf8');
+    sqlContent = sqlContent.replace(/\$2a\$10\$YourBcryptHashHere/g, adminHash);
+
+    console.log('📝 Executing SQL statements...\n');
+    await connection.query(sqlContent);
+
+    console.log('\n✅ Database initialized successfully!\n');
+
+    // 列出資料表
+    const [tables] = await connection.execute(
+      "SELECT table_name FROM information_schema.tables WHERE table_schema = ? AND table_name LIKE '%' ORDER BY table_name",
+      [dbConfig.database]
+    );
+
+    const fiveWhyTables = tables.filter(t => !t.table_name.startsWith('hr_') && !t.table_name.startsWith('pm_'));
+
+    if (fiveWhyTables.length > 0) {
+      console.log('📊 5 Why Analyzer Tables:');
+      fiveWhyTables.forEach((table, index) => {
+        console.log(`   ${index + 1}. ${table.table_name}`);
+      });
+    }
+
+    console.log(`\n🔐 Admin credentials:`);
+    console.log(`   Email: ${process.env.ADMIN_EMAIL || 'admin@example.com'}`);
+    console.log(`   Password: ${adminPassword}\n`);
+
+  } catch (error) {
+    console.error('\n❌ Error:', error.message);
+    process.exit(1);
+  } finally {
+    if (connection) await connection.end();
+  }
+}
+
+initDatabase();