feat(data): 实现配置表 CRUD 与 Schema 初始化拆分

- 新增 data/db/ 数据库访问层：pool 管理、类型定义、Zod 校验、参数化 SQL 查询
- 新增 data/db/config-crud.ts：MonitoredSymbolsRepo / ExchangeConfigRepo / AppConfigRepo 三个 CRUD 服务类
- 新增 data/config.ts：中心化配置模块，零依赖 .env 解析 + Zod 校验
- 新增 data/schema/：klines.sql + config.sql 参考 DDL
- 新增 data/exchanges/：交易所类型定义与 Binance WebSocket 封装
- 新增 data/run/：交易所连接启动入口
- 重构 data/init-db/：001_init.sql 仅保留 TimescaleDB + klines，配置表拆分至 002_config.sql
- 更新 docker-compose.yml：挂载 init-db 初始化脚本

data/db/index.ts

@@ -0,0 +1,121 @@
+// ============================================================
+// db/index.ts — 统一导出
+// ============================================================
+// 使用方式：
+//   import { KlineRow, KlineRawSchema, bulkUpsertKlines } from "./db";
+//   import { MonitoredSymbolsRepo } from "./db";
+// ============================================================
+
+// 类型定义
+export type {
+  Exchange,
+  KlineInterval,
+  LogLevel,
+  KlineRow,
+  KlineInsert,
+  AggregatedKlineRow,
+  MonitoredSymbolRow,
+  MonitoredSymbolInsert,
+  MonitoredSymbolUpdate,
+  ExchangeConfigRow,
+  ExchangeConfigInsert,
+  AppConfigRow,
+  AppConfigKey,
+  StreamKey,
+  StreamSubscription,
+} from "./types";
+
+// Zod 运行时校验
+export {
+  ExchangeSchema,
+  KlineIntervalSchema,
+  LogLevelSchema,
+  SymbolSchema,
+  NumericStringSchema,
+  KlineRawSchema,
+  KlineBatchSchema,
+  MonitoredSymbolInsertSchema,
+  MonitoredSymbolUpdateSchema,
+  ExchangeConfigInsertSchema,
+  StreamKeySchema,
+  EnvConfigSchema,
+} from "./validators";
+
+export type {
+  KlineRaw,
+  KlineBatch,
+  MonitoredSymbolInsert as MonitoredSymbolInsertValidated,
+  MonitoredSymbolUpdate as MonitoredSymbolUpdateValidated,
+  ExchangeConfigInsert as ExchangeConfigInsertValidated,
+  StreamKey as StreamKeyValidated,
+  EnvConfig,
+} from "./validators";
+
+// 参数化 SQL 查询
+export {
+  bulkUpsertKlines,
+  packBulkKlines,
+  queryKlinesRange,
+  queryKlinesLatest,
+  queryAggregatedKlines,
+  // monitored_symbols
+  queryAllMonitoredSymbols,
+  queryEnabledSymbols,
+  querySymbolsByExchange,
+  queryMonitoredSymbolById,
+  queryMonitoredSymbolByKey,
+  upsertMonitoredSymbol,
+  updateMonitoredSymbol,
+  disableMonitoredSymbol,
+  deleteMonitoredSymbol,
+  deleteMonitoredSymbolByKey,
+  // exchange_config
+  queryAllExchangeConfigs,
+  queryEnabledExchanges,
+  queryExchangeConfig,
+  queryExchangeConfigById,
+  upsertExchangeConfig,
+  updateExchangeConfig,
+  deleteExchangeConfig,
+  deleteExchangeConfigByExchange,
+  // app_config
+  queryAllAppConfig,
+  queryAppConfig,
+  queryAppConfigById,
+  upsertAppConfig,
+  updateAppConfig,
+  deleteAppConfig,
+  deleteAppConfigById,
+  // 复合查询
+  queryStreamSubscriptions,
+} from "./queries";
+
+export type { BulkKlineParams } from "./queries";
+
+// ============================================================
+// Config CRUD 服务层（推荐使用）
+// ============================================================
+
+export {
+  MonitoredSymbolsRepo,
+  ExchangeConfigRepo,
+  AppConfigRepo,
+} from "./config-crud";
+
+// ============================================================
+// PostgreSQL 连接池 & 工具
+// ============================================================
+
+export {
+  pool,
+  healthCheck,
+  timescaleVersion,
+  withTransaction,
+  closePool,
+  registerShutdownHandlers,
+  initSchemaFromFile,
+  initSchema,
+  isSchemaInitialized,
+} from "./pg";
+
+export { default as defaultPool } from "./pg";