feat(cashier): morning opening balance panel across settlement, reconciliation, position & history

- Cash Settlement form: morning panel (denomination pills) + Morning column in denomination table
- Reconciliation form: morning panel (denomination pills) + Morning column in denomination table
- Cashier Position Report: Morning vs Current comparison bar + Morning column (single-cashier mode)
- Cash History – Settlement detail panel: Morning Received vs Settled comparison bar + Morning column
- Cash History – denomination Notes/Coins separation in detail panel for all transaction types
- CashierService: added getCashierMorningBalance() calling GET /cashreports/cashier-morning
- All morning data loaded via forkJoin alongside existing API calls (no extra loading states)

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

src/app/cashier/cashier.service.ts

@@ -133,6 +133,11 @@ export class CashierService {
     return this.http.get('/cashreconciliation/check', { params });
   }
 
+  getCashierMorningBalance(cashierId: number, date: string): Observable<any> {
+    const params = new HttpParams().set('cashierId', String(cashierId)).set('date', date);
+    return this.http.get('/cashreports/cashier-morning', { params });
+  }
+
   getExpectedBalanceForMe(asOfDate?: string): Observable<any> {
     let params = new HttpParams();
     if (asOfDate) params = params.set('asOfDate', asOfDate);