no idea- added loki and other stuff to market-data-gateway, also added config lib

libs/config/src/database.ts

@@ -0,0 +1,52 @@
+/**
+ * Database configuration for Stock Bot services
+ */
+import { z } from 'zod';
+import { getEnvVar, getNumericEnvVar, validateConfig } from './core';
+import { databaseConfigSchema, DatabaseConfig } from './types';
+
+/**
+ * Default database configuration
+ */
+const defaultDatabaseConfig: DatabaseConfig = {
+  dragonfly: {
+    host: 'localhost',
+    port: 6379,
+    maxRetriesPerRequest: 3
+  },
+  timescaleDB: {
+    host: 'localhost',
+    port: 5432,
+    database: 'stockbot',
+    user: 'postgres'
+  }
+};
+
+/**
+ * Load database configuration from environment variables
+ */
+export function loadDatabaseConfig(): DatabaseConfig {
+  const config: DatabaseConfig = {
+    dragonfly: {
+      host: getEnvVar('DRAGONFLY_HOST') || defaultDatabaseConfig.dragonfly.host,
+      port: getNumericEnvVar('DRAGONFLY_PORT', defaultDatabaseConfig.dragonfly.port),
+      password: getEnvVar('DRAGONFLY_PASSWORD'),
+      maxRetriesPerRequest: getNumericEnvVar('DRAGONFLY_MAX_RETRIES_PER_REQUEST', 
+        defaultDatabaseConfig.dragonfly.maxRetriesPerRequest)
+    },
+    timescaleDB: {
+      host: getEnvVar('TIMESCALE_HOST') || defaultDatabaseConfig.timescaleDB.host,
+      port: getNumericEnvVar('TIMESCALE_PORT', defaultDatabaseConfig.timescaleDB.port),
+      database: getEnvVar('TIMESCALE_DB') || defaultDatabaseConfig.timescaleDB.database,
+      user: getEnvVar('TIMESCALE_USER') || defaultDatabaseConfig.timescaleDB.user,
+      password: getEnvVar('TIMESCALE_PASSWORD')
+    }
+  };
+
+  return validateConfig(config, databaseConfigSchema);
+}
+
+/**
+ * Singleton database configuration
+ */
+export const databaseConfig = loadDatabaseConfig();