feat: 初始化后端服务基础架构与核心组件

- 添加项目基础结构，包括 .gitignore、package.json、Docker 配置和环境变量示例
- 实现核心模块：Kafka 消费者、PostgreSQL 数据库管理器、Redis 客户端与错误队列
- 添加工具类：日志记录器、指标收集器、UUID 生成器
- 实现数据处理器，支持 0x36 上报和 0x0F 命令的解析与存储
- 添加数据库初始化脚本和分区管理，支持按时间范围分区
- 引入 Zod 数据验证和 Vitest 单元测试框架
- 提供完整的项目文档，包括数据库设计、Kafka 格式规范和 Redis 集成协议

bls-rcu-action-backend/src/config/config.js

@@ -0,0 +1,50 @@
+import dotenv from 'dotenv';
+
+dotenv.config();
+
+const parseNumber = (value, defaultValue) => {
+  const parsed = Number(value);
+  return Number.isFinite(parsed) ? parsed : defaultValue;
+};
+
+const parseList = (value) =>
+  (value || '')
+    .split(',')
+    .map((item) => item.trim())
+    .filter(Boolean);
+
+export const config = {
+  env: process.env.NODE_ENV || 'development',
+  port: parseNumber(process.env.PORT, 3000),
+  kafka: {
+    brokers: parseList(process.env.KAFKA_BROKERS),
+    topic: process.env.KAFKA_TOPIC || process.env.KAFKA_TOPICS || 'blwlog4Nodejs-rcu-action-topic',
+    groupId: process.env.KAFKA_GROUP_ID || 'bls-rcu-action-group',
+    clientId: process.env.KAFKA_CLIENT_ID || 'bls-rcu-action-client',
+    consumerInstances: parseNumber(process.env.KAFKA_CONSUMER_INSTANCES, 1),
+    sasl: process.env.KAFKA_SASL_USERNAME && process.env.KAFKA_SASL_PASSWORD ? {
+      mechanism: process.env.KAFKA_SASL_MECHANISM || 'plain',
+      username: process.env.KAFKA_SASL_USERNAME,
+      password: process.env.KAFKA_SASL_PASSWORD
+    } : undefined
+  },
+  db: {
+    host: process.env.DB_HOST || process.env.POSTGRES_HOST || 'localhost',
+    port: parseNumber(process.env.DB_PORT || process.env.POSTGRES_PORT, 5432),
+    user: process.env.DB_USER || process.env.POSTGRES_USER || 'postgres',
+    password: process.env.DB_PASSWORD || process.env.POSTGRES_PASSWORD || '',
+    database: process.env.DB_DATABASE || process.env.POSTGRES_DATABASE || 'bls_rcu_action',
+    max: parseNumber(process.env.DB_MAX_CONNECTIONS || process.env.POSTGRES_MAX_CONNECTIONS, 10),
+    ssl: process.env.DB_SSL === 'true' ? { rejectUnauthorized: false } : undefined,
+    schema: process.env.DB_SCHEMA || 'rcu_action',
+    table: process.env.DB_TABLE || 'rcu_action_events'
+  },
+  redis: {
+    host: process.env.REDIS_HOST || 'localhost',
+    port: parseNumber(process.env.REDIS_PORT, 6379),
+    password: process.env.REDIS_PASSWORD || undefined,
+    db: parseNumber(process.env.REDIS_DB, 0),
+    projectName: process.env.REDIS_PROJECT_NAME || 'bls-rcu-action',
+    apiBaseUrl: process.env.REDIS_API_BASE_URL || `http://localhost:${parseNumber(process.env.PORT, 3000)}`
+  }
+};