Add Posthog tracking + fix extension download + doc

test/api/endToEnd.test.js

@@ -57,7 +57,7 @@ describe('end-to-end: image family', () => {
     const downloadResponse = await request(app).get(`/api/jobs/${id}/download`);
     expect(downloadResponse.status).toBe(200);
     expect(downloadResponse.headers['content-type']).toBe('image/webp');
-    expect(downloadResponse.headers['content-disposition']).toContain('photo.png');
+    expect(downloadResponse.headers['content-disposition']).toContain('photo.webp');
   }, 20000);
 });
 
@@ -82,7 +82,7 @@ describe('end-to-end: document family', () => {
     const downloadResponse = await request(app).get(`/api/jobs/${id}/download`);
     expect(downloadResponse.status).toBe(200);
     expect(downloadResponse.headers['content-type']).toBe('application/pdf');
-    expect(downloadResponse.headers['content-disposition']).toContain('report.docx');
+    expect(downloadResponse.headers['content-disposition']).toContain('report.pdf');
 
     await fs.unlink(docxPath);
   }, 20000);

test/api/jobStatus.test.js

@@ -73,7 +73,7 @@ describe('GET /api/jobs/:id/download', () => {
 
     expect(response.status).toBe(200);
     expect(response.headers['content-type']).toBe('image/webp');
-    expect(response.headers['content-disposition']).toContain('holiday photo.png');
+    expect(response.headers['content-disposition']).toContain('holiday photo.webp');
     expect(response.body ?? response.text).toBeDefined();
   });