feat: add executive kiosk dashboard for TV display

- Created /kiosk route with full-screen display
- Added API endpoints for stats and activity feed
- Built cycling KPI display with 12 metrics
- Added scrolling ticker for ticket activity
- Implemented UI-configurable cycle interval (3-15s, default 7s)
- Focus on critical tickets and business metrics
- Added navigation link from dashboard
- Dark theme optimized for TV viewing

app/api/kiosk/activity/route.ts

@@ -0,0 +1,44 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { postgresClient } from '@/lib/services/postgres-client';
+
+export async function GET(request: NextRequest) {
+  try {
+    // Get recent ticket activity for ticker feed
+    const activityResult = await postgresClient.query(
+      `SELECT 
+        t.ticket_number,
+        t.title,
+        t.priority,
+        t.status,
+        t.create_date,
+        t.last_activity_date,
+        c.company_name,
+        s.label as status_label
+       FROM tickets t
+       LEFT JOIN companies c ON t.company_id = c.id
+       LEFT JOIN statuses s ON t.status = s.value
+       WHERE t.completed_date IS NULL
+       ORDER BY t.last_activity_date DESC NULLS LAST
+       LIMIT 50`
+    );
+
+    const activities = activityResult.rows.map((row: any) => ({
+      ticketNumber: row.ticket_number,
+      title: row.title,
+      priority: row.priority,
+      status: row.status,
+      statusLabel: row.status_label,
+      companyName: row.company_name,
+      createDate: row.create_date,
+      lastActivityDate: row.last_activity_date,
+    }));
+
+    return NextResponse.json({ activities });
+  } catch (error) {
+    console.error('Error fetching kiosk activity:', error);
+    return NextResponse.json(
+      { error: 'Failed to fetch kiosk activity' },
+      { status: 500 }
+    );
+  }
+}