Final fix for backend structure and API launch

backend/src/data-source.ts

@@ -0,0 +1,24 @@
+/**
+ * ════════════════════════════════════════════════════════════
+ * مُصادَق — TypeORM CLI Data Source
+ * ════════════════════════════════════════════════════════════
+ */
+
+import { DataSource } from 'typeorm';
+import * as dotenv from 'dotenv';
+
+dotenv.config();
+
+export const AppDataSource = new DataSource({
+  type: 'postgres',
+  host: process.env.DB_HOST,
+  port: parseInt(process.env.DB_PORT || '5300'),
+  username: process.env.DB_USER,
+  password: process.env.DB_PASS,
+  database: process.env.DB_NAME,
+  synchronize: false,
+  logging: true,
+  entities: ['src/**/entities/*.entity.ts'],
+  migrations: ['src/migrations/*.ts'],
+  subscribers: [],
+});