feat(nestjs): migrate to NestJS

packages/server/src/common/config/s3.ts

@@ -0,0 +1,9 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('s3', () => ({
+  region: process.env.S3_REGION || 'US',
+  accessKeyId: process.env.S3_ACCESS_KEY_ID,
+  secretAccessKey: process.env.S3_SECRET_ACCESS_KEY,
+  endpoint: process.env.S3_ENDPOINT,
+  bucket: process.env.S3_BUCKET,
+}));