bug fix for atemschutz

backend/src/config/database.ts

@@ -1,9 +1,13 @@
-import { Pool, PoolConfig } from 'pg';
+import { Pool, PoolConfig, types } from 'pg';
 import * as fs from 'fs';
 import * as path from 'path';
 import environment from './environment';
 import logger from '../utils/logger';
 
+// Override pg's default DATE parser: return plain 'YYYY-MM-DD' strings
+// instead of JavaScript Date objects (which introduce timezone shifts).
+types.setTypeParser(1082, (val: string) => val);
+
 const poolConfig: PoolConfig = {
   host: environment.database.host,
   port: environment.database.port,