feat: 初始化BLS心跳接收端项目

- 添加基础项目结构，包括.gitignore、vite配置和package.json
- 实现Kafka消费者模块框架
- 添加心跳处理器模块框架
- 实现数据库管理模块框架
- 添加OpenSpec规范文档
- 更新README文档说明项目功能和技术栈

src/index.js

@@ -0,0 +1,78 @@
+// 项目入口文件
+import config from './config/config.js';
+import { KafkaConsumer } from './kafka/consumer.js';
+import { HeartbeatProcessor } from './processor/heartbeatProcessor.js';
+import { DatabaseManager } from './db/databaseManager.js';
+
+class WebBLSHeartbeatServer {
+  constructor() {
+    this.config = config;
+    this.kafkaConsumer = null;
+    this.heartbeatProcessor = null;
+    this.databaseManager = null;
+  }
+
+  async start() {
+    try {
+      // 初始化数据库连接
+      this.databaseManager = new DatabaseManager(this.config.db);
+      await this.databaseManager.connect();
+      console.log('数据库连接成功');
+
+      // 初始化处理器
+      this.heartbeatProcessor = new HeartbeatProcessor(
+        this.config.processor,
+        this.databaseManager
+      );
+
+      // 初始化Kafka消费者
+      this.kafkaConsumer = new KafkaConsumer(
+        this.config.kafka,
+        this.heartbeatProcessor.processMessage.bind(this.heartbeatProcessor)
+      );
+      await this.kafkaConsumer.connect();
+      await this.kafkaConsumer.subscribe();
+      await this.kafkaConsumer.startConsuming();
+      console.log('Kafka消费者启动成功');
+
+      console.log('BLS心跳接收端启动成功');
+    } catch (error) {
+      console.error('启动失败:', error);
+      process.exit(1);
+    }
+  }
+
+  async stop() {
+    try {
+      if (this.kafkaConsumer) {
+        await this.kafkaConsumer.stopConsuming();
+        await this.kafkaConsumer.disconnect();
+      }
+      
+      if (this.databaseManager) {
+        await this.databaseManager.disconnect();
+      }
+      
+      console.log('BLS心跳接收端已停止');
+    } catch (error) {
+      console.error('停止失败:', error);
+    }
+  }
+}
+
+// 启动服务器
+const server = new WebBLSHeartbeatServer();
+server.start();
+
+// 处理进程终止信号
+process.on('SIGINT', () => {
+  server.stop();
+  process.exit(0);
+});
+
+process.on('SIGTERM', () => {
+  server.stop();
+  process.exit(0);
+});
+
+export { WebBLSHeartbeatServer };