feat(tasks,savings,cashier): facility charge mapping screen, chained approve+activate, popup diff dialog, cash/transfer-only teller flow

Adds a Products > Facility Charge Mappings screen so each of the 16 facility
toggles can be pointed at a real charge, backing the mapped-charge validation
added on the backend. Bulk-approve on the pending accounts screen now chains
straight into activation (matching the single-account approve flow) instead
of leaving accounts sitting in Approved; the same screen's Confirm button no
longer stays disabled on pre-filled but untouched dialogs. Add Charge is
hidden on not-yet-active savings accounts, and Transfer Funds is disabled
entirely pending a proper transfer flow. The pending savings-account edit
"Proposed Changes" panel is now a MatDialog showing only the fields that
actually changed, replacing the old always-open inline diff table. The teller
transaction-entry Payment Type dropdown is filtered to Cash/Transfer only,
mirroring the backend's retirement of the other system-defined payment types
so share withdrawal and GL transfers now settle the same way real transfers
do.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

src/app/cashier/transaction-entry/transaction-entry.component.ts

@@ -778,23 +778,33 @@ export class TransactionEntryComponent implements OnInit, OnDestroy {
   loadingAccount = false;
   accountError = '';
 
-  /** Share redemption settlement is always a book-transfer to the linked savings account — never a
-   *  cash handover. A Share (SHR) row's own TXN TP. never offers a cash payment type, and neither
-   *  does its paired CR (savings) row in "Enter Bank Transfer" mode — that CR row's payment type is
-   *  the one that actually governs how the settlement credit posts (see submitShareRedemptionTransfer()).
-   *  Every other account type/mode keeps the full, unfiltered list. */
+  /**
+   * A teller only ever picks Cash or Transfer — which specific internal settlement it actually is
+   * (a share redemption, a dividend payout, a GL-to-GL or GL-to-bank book entry) is business logic
+   * the backend already threads through from whichever payment type the clerk picked here (see
+   * ClerkShareWithdrawalRequestApiResource#creditLinkedSavingsAccount on the backend), not a separate
+   * teller-facing choice. System-defined payment types (Share Redemption Transfer, Dividend Claim
+   * Settlement, the loan repayment-adjustment types, ...) exist purely as internal audit labels and
+   * are never offered here.
+   *
+   * Share redemption settlement is always a book-transfer to the linked savings account — never a
+   * cash handover. A Share (SHR) row's own TXN TP. never offers a cash payment type, and neither
+   * does its paired CR (savings) row in "Enter Bank Transfer" mode — that CR row's payment type is
+   * the one that actually governs how the settlement credit posts (see submitShareRedemptionTransfer()).
+   */
   paymentTypesForRow(row: TxnRow): any[] {
+    const tellerFacing = this.paymentTypes.filter((pt: any) => !pt.isSystemDefined);
     if (row.acTyp === 'SHR') {
-      return this.paymentTypes.filter((pt: any) => !pt.isCashPayment);
+      return tellerFacing.filter((pt: any) => !pt.isCashPayment);
     }
     const isShareSettlementCredit =
       row.typ === 'Enter Bank Transfer' &&
       row.dbCr === 'Cr' &&
       this.rows.some((r) => r.typ === 'Enter Bank Transfer' && r.dbCr === 'Dr' && r.acTyp === 'SHR');
     if (isShareSettlementCredit) {
-      return this.paymentTypes.filter((pt: any) => !pt.isCashPayment);
+      return tellerFacing.filter((pt: any) => !pt.isCashPayment);
     }
-    return this.paymentTypes;
+    return tellerFacing;
   }
 
   // Per-row account id/name map: acNo → Fineract id/name (used for multi-row disbursement)
@@ -1563,7 +1573,7 @@ export class TransactionEntryComponent implements OnInit, OnDestroy {
     if (settlementPaymentType?.isCashPayment) {
       this.showAlert('error', 'Cash Not Allowed for Share Transactions', [
         'Share redemption settlement is always a book-transfer to the linked savings account, never cash.',
-        'Select a non-cash Payment Type on the CR row (e.g. Transfer or Share Redemption Transfer).'
+        'Select Transfer as the Payment Type on the CR row.'
       ]);
       return;
     }