feat: cashier denomination-wise opening & closing balance panels in all deposit/withdrawal forms

OVERVIEW
--------
Added real-time cashier cash position display inside the denomination breakdown
panel of all 4 transaction entry screens: Savings, Current Account, Recurring
Deposit, and Fixed Deposit. Shows opening balance at the top and projected
closing balance at the bottom after factoring in the current transaction.

BACKEND INTEGRATION
-------------------
- New CashierService (src/app/cashier/cashier.service.ts)
  getCashierPositionForMe(asOfDate?) calls GET /cashreports/cashier-position/me
  Returns denomination-wise opening cash position for the logged-in cashier user.
  Non-cashier users receive empty denominations array; UI hides panels silently.

OPENING BALANCE CARD (top of denomination panel)
-------------------------------------------------
- Loaded on ngOnInit() via loadOpeningPosition() in all 4 component .ts files
- Notes and Coins displayed in separate labeled pill sections
- Each pill shows: Rs{value} x{count} format
- Card is hidden entirely if the logged-in user is not a cashier

CLOSING BALANCE CARD (below tally / Apply button)
--------------------------------------------------
- Computed getter closingDenoms() merges opening position with entered denominations
  deposit:    closingCount = openCount + enteredCount
  withdrawal: closingCount = openCount - enteredCount
- Notes and Coins in separate labeled pill sections (identical format to opening)
- Entered/changed denominations (delta != 0): full opacity + bold font weight
- Untouched denominations (delta = 0): 38% opacity, clearly dimmed, no borders
- closingTotal = openingTotal +/- denominationTotal shown in card header
- Card turns green for positive closing balance, red for negative

COMPONENTS UPDATED
------------------
- savings-account-transactions       (.ts / .html / .scss)
- current-account-transactions       (.ts / .html / .scss)
- deposit-recurring-deposits-account (.ts / .html / .scss)
- fixed-deposits-cash-transaction    (.ts / .html / .scss)

CASHIER MODULE (new - src/app/cashier/)
-----------------------------------------
Full cashier workspace module added to the app:
- cashier.service.ts          API calls (position, transfers, settlement, etc.)
- cashier.module.ts           Angular module declaration
- cashier-routing.module.ts   Lazy-loaded routes
- cashier-position/           Cashier cash position dashboard
- cash-exchange-entry/        Cash exchange denomination entry
- cash-history/               Transaction history per cashier
- cash-settlement/            End-of-day cash settlement
- cash-transfer/              Vault-to-cashier cash transfer
- inter-cashier-transfer/     Transfer between cashier drawers
- reconciliation/             Cash reconciliation with GL
- closing-cash-report/        Closing balance report
- currency-exchange-detail/   Currency exchange breakdown
- excess-transaction-report/  Excess/short transaction report
Module wired into app.module.ts and shell nav (shell.component.html).

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

src/app/cashier/closing-cash-report/closing-cash-report.component.ts

@@ -0,0 +1,72 @@
+/**
+ * Copyright since 2025 Mifos Initiative
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+import { Component, OnInit, inject } from '@angular/core';
+import { CommonModule } from '@angular/common';
+import { FormsModule } from '@angular/forms';
+import { MatIconModule } from '@angular/material/icon';
+import { CashierService } from '../cashier.service';
+
+/** Day-wise denomination-wise closing cash collected from deposits. */
+@Component({
+  selector: 'mifosx-closing-cash-report',
+  templateUrl: './closing-cash-report.component.html',
+  styleUrls: ['../cashier-shared.scss'],
+  standalone: true,
+  imports: [
+    CommonModule,
+    FormsModule,
+    MatIconModule
+  ]
+})
+export class ClosingCashReportComponent implements OnInit {
+  private service = inject(CashierService);
+
+  date = '';
+  rows: any[] = [];
+  depositTotal = 0;
+  withdrawalTotal = 0;
+  netTotal = 0;
+  loading = false;
+  loaded = false;
+
+  get noteRows(): any[] {
+    return this.rows.filter((r) => r.kind !== 'coin');
+  }
+  get coinRows(): any[] {
+    return this.rows.filter((r) => r.kind === 'coin');
+  }
+
+  ngOnInit(): void {
+    const d = new Date();
+    this.date = `${d.getFullYear()}-${String(d.getMonth() + 1).padStart(2, '0')}-${String(d.getDate()).padStart(2, '0')}`;
+    this.load();
+  }
+
+  load(): void {
+    this.loading = true;
+    this.service.closingCashReport(this.date).subscribe({
+      next: (res: any) => {
+        this.rows = res?.rows || [];
+        this.depositTotal = Number(res?.depositTotal || 0);
+        this.withdrawalTotal = Number(res?.withdrawalTotal || 0);
+        this.netTotal = Number(res?.netTotal || 0);
+        this.loading = false;
+        this.loaded = true;
+      },
+      error: () => {
+        this.rows = [];
+        this.depositTotal = 0;
+        this.withdrawalTotal = 0;
+        this.netTotal = 0;
+        this.loading = false;
+        this.loaded = true;
+      }
+    });
+  }
+}