feat(bank-transfer): convert bank transfer to maker-checker approval flow

- submitBankTransfer() now calls submit() with requestType='BANK_TRANSFER'
  instead of the immediate-execution /banktransfer endpoint
- Confirm dialog updated: 'Submit for Approval' instead of 'Execute Transfer'
- disbursement-review: isBankTransferMode getter, separate DR/CR entry tables,
  'Approve Bank Transfer' button label, correct isCollectionMode guard
- Disbursement Requests checker inbox: Type badge (Bank Transfer/Collection/
  Disbursement) column, GL column shows 'Intra-bank transfer' for BT requests
- Checker inbox tab renamed to 'Disbursement & Transfers'

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

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

@@ -140,7 +140,7 @@
       *mifosxHasPermission="'ALL_FUNCTIONS_READ'"
     >
       <fa-icon icon="money-bill-wave" class="ac-tab__ic"></fa-icon>
-      <span>Disbursement Requests</span>
+      <span>Disbursement & Transfers</span>
     </a>
   </nav>