feat(web): build agent dashboard with analytics charts and listing management

- Dashboard overview: stats cards (listings, views, inquiries, market avg price), Recharts bar chart for district pricing, recent listings feed with engagement metrics
- Analytics page: tabbed layout (overview/trends/districts), interactive bar chart for district comparison, line chart for price trend over quarters with dual Y-axis, clickable heatmap cards
- Listings management: grid/table view toggle, status filter, stats summary cards, table view with thumbnails and engagement data

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/web/package.json

@@ -19,6 +19,7 @@
     "react": "^18.3.0",
     "react-dom": "^18.3.0",
     "react-hook-form": "^7.72.1",
+    "recharts": "^3.8.1",
     "tailwind-merge": "^3.5.0",
     "zod": "^4.3.6",
     "zustand": "^5.0.12"