Umstellung auf PostgresDB & user Table & update drizzle

drizzle.config.ts

@@ -3,8 +3,8 @@ import { defineConfig } from 'drizzle-kit';
 export default defineConfig({
   out: './drizzle',
   schema: './api/src/db/schema.ts',
-  dialect: 'sqlite',
+  dialect: 'postgresql',
   dbCredentials: {
-    url: 'file:local1.db',
+    url: process.env['DATABASE_URL'],
   },
-});
+});