feat: Responsive admin UI, SEO pages, and click analytics

## Responsive Admin UI
- Layout.tsx: Mobile sidebar drawer with hamburger menu
- Dashboard.tsx: 2-col grid on mobile, responsive stats cards
- OrchestratorDashboard.tsx: Responsive table with hidden columns
- PagesTab.tsx: Responsive filters and table

## SEO Pages
- New /admin/seo section with state landing pages
- SEO page generation and management
- State page content with dispensary/product counts

## Click Analytics
- Product click tracking infrastructure
- Click analytics dashboard

## Other Changes
- Consumer features scaffolding (alerts, deals, favorites)
- Health panel component
- Workers dashboard improvements
- Legacy DutchieAZ pages removed

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

backend/src/multi-state/routes.ts

@@ -447,5 +447,55 @@ export function createMultiStateRoutes(pool: Pool): Router {
     }
   });
 
+  // =========================================================================
+  // Health Check Endpoint
+  // =========================================================================
+
+  /**
+   * GET /api/health/analytics
+   * Health check for analytics subsystem
+   */
+  router.get('/health/analytics', async (req: Request, res: Response) => {
+    try {
+      const startTime = Date.now();
+
+      // Check materialized view is accessible
+      const result = await pool.query(`
+        SELECT COUNT(*) as state_count,
+               MAX(refreshed_at) as last_refresh
+        FROM mv_state_metrics
+      `);
+
+      const dbLatency = Date.now() - startTime;
+      const stateCount = parseInt(result.rows[0]?.state_count || '0', 10);
+      const lastRefresh = result.rows[0]?.last_refresh;
+
+      // Check if data is stale (more than 24 hours old)
+      const isStale = lastRefresh
+        ? Date.now() - new Date(lastRefresh).getTime() > 24 * 60 * 60 * 1000
+        : true;
+
+      res.json({
+        success: true,
+        status: isStale ? 'degraded' : 'healthy',
+        data: {
+          statesInCache: stateCount,
+          lastRefresh: lastRefresh || null,
+          isStale,
+          dbLatencyMs: dbLatency,
+        },
+        timestamp: new Date().toISOString(),
+      });
+    } catch (error: any) {
+      console.error('[MultiState] Health check failed:', error);
+      res.status(503).json({
+        success: false,
+        status: 'unhealthy',
+        error: error.message,
+        timestamp: new Date().toISOString(),
+      });
+    }
+  });
+
   return router;
 }