fix(s3): conform to RFC 6266 for ResponseContentDisposition filename encoding

server/services/s3.test.ts

@@ -185,7 +185,7 @@ describe('S3Service', () => {
         expect.anything(),
         expect.objectContaining({
           input: expect.objectContaining({
-            ResponseContentDisposition: 'attachment; filename="my%20photo.jpg"',
+            ResponseContentDisposition: 'attachment; filename="my photo.jpg"; filename*=UTF-8\'\'my%20photo.jpg',
           }),
         }),
         expect.anything(),

server/services/s3.ts

@@ -57,7 +57,7 @@ export class S3Service {
     const command = new GetObjectCommand({
       Bucket: storage.bucket,
       Key: key,
-      ResponseContentDisposition: `attachment; filename="${encodeURIComponent(filename)}"`,
+      ResponseContentDisposition: `attachment; filename="${filename.replace(/"/g, '\\"')}"; filename*=UTF-8''${encodeURIComponent(filename)}`,
     })
     const url = await getSignedUrl(client, command, { expiresIn })
     return this.applyCustomHost(storage, url)