feat(cashier+checker): add cashier deposit maker-checker flow and voucher system

- Add cashier deposit service and submit flow via maker-checker
- New CashierDepositService: submit, approve, reject, list endpoints
- Transaction-entry: cashier SD deposit goes to deposit-requests instead of direct credit
- Checker inbox: new Deposit Requests tab with approve/reject review dialog
- Cashier nav: My Deposit Requests tracking page
- Withdrawal requests: show voucher_no from backend instead of JS-padded id
- clerk-withdrawal.service: disburse denominationData accepts null for non-cash
- Role-based checker enforcement: only manager/head-cashier can approve/reject
- Maker cannot approve own request (self-approval blocked at backend)
- Denomination total validation: breakdown must match transaction amount

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

src/app/tasks/checker-inbox-and-tasks/checker-inbox-and-tasks.component.html

@@ -118,6 +118,18 @@
       <fa-icon icon="money-bill-wave" class="ac-tab__ic"></fa-icon>
       <span>Withdrawal Requests</span>
     </a>
+    <a
+      mat-tab-link
+      class="ac-tab"
+      [routerLink]="['./deposit-requests']"
+      routerLinkActive
+      #depositRequests="routerLinkActive"
+      [active]="depositRequests.isActive"
+      *mifosxHasPermission="'ALL_FUNCTIONS_READ'"
+    >
+      <fa-icon icon="hand-holding-usd" class="ac-tab__ic"></fa-icon>
+      <span>Deposit Requests</span>
+    </a>
   </nav>
 
   <mat-tab-nav-panel #tabPanel>