fix: remove TypeScript type annotation from SchedulePage.jsx (plain JSX build)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

manager_dashboard/src/pages/SchedulePage.jsx

@@ -209,7 +209,7 @@ export default function SchedulePage() {
 
   // Build per-waiter per-day grid
   // { waiter_id: { dateStr: { scheduled: [...], actual: [...] } } }
-  const grid: Record<number, Record<string, { scheduled: any[], actual: any[] }>> = {}
+  const grid = {}
 
   for (const s of scheduled) {
     if (!grid[s.user_id]) grid[s.user_id] = {}