Add URL-based routing with sidebar navigation

Replace client-side state switching with proper Next.js routes:
- /new - New scrape form
- /jobs - Jobs list with table view
- /jobs/[id] - Individual job details and logs
- /analytics - Analytics overview (completed jobs)
- /analytics/[id] - Analytics for specific job

Add JobsContext for shared state across routes. Update Sidebar
to use next/link with pathname matching. Root page redirects to /new.

Also adds partial job status styling to JobsView.

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

web/app/jobs/page.tsx

@@ -0,0 +1,30 @@
+'use client';
+
+import { useRouter } from 'next/navigation';
+import { useState } from 'react';
+import JobsView from '@/components/JobsView';
+import { useJobs } from '@/contexts/JobsContext';
+import { JobStatus } from '@/components/ScraperTest';
+
+export default function JobsPage() {
+  const router = useRouter();
+  const { jobs, refreshJobs } = useJobs();
+  const [isLoadingJob, setIsLoadingJob] = useState<string | null>(null);
+
+  const handleSelectJob = async (job: JobStatus, previousJob?: JobStatus) => {
+    // Navigate to analytics page for this job
+    const url = previousJob
+      ? `/analytics/${job.job_id}?compare=${previousJob.job_id}`
+      : `/analytics/${job.job_id}`;
+    router.push(url);
+  };
+
+  return (
+    <JobsView
+      jobs={jobs}
+      onSelectJob={handleSelectJob}
+      isLoadingJob={isLoadingJob}
+      onRefresh={refreshJobs}
+    />
+  );
+}