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

package.json

@@ -0,0 +1,32 @@
+{
+  "name": "web-bls-heartbeat-server",
+  "version": "1.0.0",
+  "description": "BLS心跳接收端，用于处理Kafka队列数据并写入PostgreSQL数据库",
+  "type": "module",
+  "main": "dist/index.js",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview",
+    "lint": "eslint . --ext .js",
+    "test": "mocha"
+  },
+  "dependencies": {
+    "kafka-node": "^5.0.0",
+    "pg": "^8.11.3"
+  },
+  "devDependencies": {
+    "vite": "^5.0.0",
+    "eslint": "^8.56.0",
+    "mocha": "^10.2.0"
+  },
+  "keywords": [
+    "BLS",
+    "heartbeat",
+    "kafka",
+    "postgresql",
+    "nodejs"
+  ],
+  "author": "",
+  "license": "MIT"
+}