Add browser fingerprint support and analytics metadata display

- Transfer user's browser fingerprint (user-agent, viewport, timezone,
  language, geolocation) to Chrome for more authentic scraping
- Display review topics from Google Maps in analytics dashboard
- Show business category badge in analytics header
- Fix date_text null handling in analytics (handle undefined/timestamp fields)
- Add review_topics and business_category to JobStatus interface

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

web/app/page.tsx

@@ -27,6 +27,8 @@ interface SelectedJob {
   jobId: string;
   newCount?: number;
   previousJobId?: string;
+  businessCategory?: string;
+  reviewTopics?: { topic: string; count: number }[];
 }
 
 type ViewType = 'newScrape' | 'jobs' | 'reports';
@@ -106,6 +108,8 @@ export default function Home() {
           jobId: job.job_id,
           newCount: data.new_count,
           previousJobId: previousJob?.job_id,
+          businessCategory: job.business_category || undefined,
+          reviewTopics: job.review_topics || undefined,
         });
         setActiveView('reports');
       }
@@ -155,7 +159,7 @@ export default function Home() {
                 Back to Reports
               </button>
             </div>
-            <ReviewAnalytics reviews={selectedJob.reviews} businessName={selectedJob.businessName} businessUrl={selectedJob.businessUrl} newCount={selectedJob.newCount} />
+            <ReviewAnalytics reviews={selectedJob.reviews} businessName={selectedJob.businessName} businessUrl={selectedJob.businessUrl} newCount={selectedJob.newCount} businessCategory={selectedJob.businessCategory} reviewTopics={selectedJob.reviewTopics} />
           </div>
         ) : (
           <div className="h-full overflow-y-auto p-6">