fix docker build

api/src/utils/db-column-types.ts

@@ -1,5 +1,2 @@
-import type { ColumnType } from 'typeorm';
-
-const dbType = (process.env.DB_TYPE ?? 'sqlite').toLowerCase();
-
-export const dateTimeColumnType: ColumnType = dbType === 'postgres' ? 'timestamp' : 'datetime';
+export const dateTimeColumnType: 'timestamp' | 'datetime' =
+  process.env.DB_TYPE === 'postgres' ? 'timestamp' : 'datetime';