feat: 完成从Supabase到本地化架构的迁移\n\n- 添加本地SQLite数据库支持\n- 实现本地认证系统（JWT + bcrypt）\n- 创建Express.js API服务器\n- 实现完整的命理分析算法\n- 替换Supabase客户端为本地API客户端\n- 保持前端接口兼容性\n- 添加本地服务器启动脚本

server/database.js

@@ -0,0 +1,111 @@
+import Database from 'better-sqlite3';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+// 创建数据库连接
+const dbPath = path.join(__dirname, '..', 'numerology.db');
+const db = new Database(dbPath);
+
+// 启用外键约束
+db.pragma('foreign_keys = ON');
+
+// 创建用户表
+db.exec(`
+  CREATE TABLE IF NOT EXISTS users (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    email TEXT UNIQUE NOT NULL,
+    password TEXT NOT NULL,
+    full_name TEXT,
+    birth_date DATE,
+    birth_time TIME,
+    birth_place TEXT,
+    gender TEXT CHECK (gender IN ('male', 'female')),
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+  )
+`);
+
+// 创建分析记录表
+db.exec(`
+  CREATE TABLE IF NOT EXISTS readings (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    user_id INTEGER NOT NULL,
+    reading_type TEXT NOT NULL CHECK (reading_type IN ('bazi', 'ziwei', 'yijing', 'wuxing')),
+    name TEXT,
+    birth_date DATE,
+    birth_time TIME,
+    gender TEXT CHECK (gender IN ('male', 'female')),
+    birth_place TEXT,
+    input_data TEXT,
+    results TEXT,
+    analysis TEXT,
+    status TEXT DEFAULT 'completed' CHECK (status IN ('pending', 'processing', 'completed', 'failed')),
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+  )
+`);
+
+// 创建索引
+db.exec(`
+  CREATE INDEX IF NOT EXISTS idx_readings_user_id ON readings(user_id);
+  CREATE INDEX IF NOT EXISTS idx_readings_type ON readings(reading_type);
+  CREATE INDEX IF NOT EXISTS idx_readings_created_at ON readings(created_at DESC);
+`);
+
+// 数据库操作函数
+export const dbOperations = {
+  // 用户相关操作
+  createUser: db.prepare(`
+    INSERT INTO users (email, password, full_name, birth_date, birth_time, birth_place, gender)
+    VALUES (?, ?, ?, ?, ?, ?, ?)
+  `),
+  
+  getUserByEmail: db.prepare('SELECT * FROM users WHERE email = ?'),
+  
+  getUserById: db.prepare('SELECT id, email, full_name, birth_date, birth_time, birth_place, gender, created_at FROM users WHERE id = ?'),
+  
+  updateUser: db.prepare(`
+    UPDATE users 
+    SET full_name = ?, birth_date = ?, birth_time = ?, birth_place = ?, gender = ?, updated_at = CURRENT_TIMESTAMP
+    WHERE id = ?
+  `),
+  
+  // 分析记录相关操作
+  createReading: db.prepare(`
+    INSERT INTO readings (user_id, reading_type, name, birth_date, birth_time, gender, birth_place, input_data, results, analysis)
+    VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+  `),
+  
+  getReadingsByUserId: db.prepare(`
+    SELECT * FROM readings 
+    WHERE user_id = ? 
+    ORDER BY created_at DESC
+  `),
+  
+  getReadingsByUserIdAndType: db.prepare(`
+    SELECT * FROM readings 
+    WHERE user_id = ? AND reading_type = ?
+    ORDER BY created_at DESC
+  `),
+  
+  getReadingById: db.prepare('SELECT * FROM readings WHERE id = ?'),
+  
+  deleteReading: db.prepare('DELETE FROM readings WHERE id = ? AND user_id = ?'),
+  
+  // 统计信息
+  getUserReadingCount: db.prepare('SELECT COUNT(*) as count FROM readings WHERE user_id = ?'),
+  
+  getReadingCountByType: db.prepare('SELECT reading_type, COUNT(*) as count FROM readings WHERE user_id = ? GROUP BY reading_type')
+};
+
+// 优雅关闭数据库连接
+process.on('exit', () => db.close());
+process.on('SIGHUP', () => process.exit(128 + 1));
+process.on('SIGINT', () => process.exit(128 + 2));
+process.on('SIGTERM', () => process.exit(128 + 15));
+
+export default db;