feat(cashier): cashier-only cash operations, exchange PAN/denomination checks and Branch Cash Position

- Cash Exchange Entry: customer details with PAN (mandatory above Rs 50,000), cashier card,
  denomination-wise validation against the master and real-time impact preview.
- Inter-Cashier Transfer: sender fixed to the logged-in cashier, both sides' details and
  denomination holdings shown, blocked until both are allocated cash.
- Reconciliation, exchange and inter-cashier operate on the logged-in cashier only.
- New Branch Cash Position screen (vault + cashier drawers, denomination-wise).
- Customer search dialog shows the KYC PAN.
- Cashier menu cleanup: Excess/Closing report and Exchange Detail removed, nav compacted to one row.
- Reverse actions removed from cash transfer, settlement, exchange and inter-cashier.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/app/cashier/branch-cash-position/branch-cash-position.component.scss

@@ -0,0 +1,82 @@
+/**
+ * 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/.
+ */
+
+.bcp-error {
+  color: #dc2626;
+}
+
+.bcp-note {
+  margin-bottom: 12px;
+  text-align: left;
+}
+
+.bcp-totals {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 12px;
+  margin-bottom: 14px;
+}
+
+.bcp-total {
+  flex: 1 1 180px;
+  padding: 12px 14px;
+  background: #fff;
+  border: 1px solid #e2e8f0;
+  border-radius: 12px;
+
+  span {
+    display: block;
+    font-size: 11px;
+    font-weight: 600;
+    letter-spacing: 0.04em;
+    text-transform: uppercase;
+    color: #64748b;
+  }
+
+  strong {
+    font-size: 18px;
+    font-weight: 700;
+    color: #0f172a;
+  }
+
+  &--main {
+    background: #e6f4ee;
+    border-color: #1f7a4d;
+
+    strong {
+      color: #0f4f3c;
+    }
+  }
+}
+
+.bcp-card {
+  margin-bottom: 14px;
+}
+
+.bcp-strong {
+  font-weight: 700;
+}
+
+.bcp-move {
+  font-weight: 700;
+  color: #94a3b8;
+
+  &--in {
+    color: #16a34a;
+  }
+
+  &--out {
+    color: #dc2626;
+  }
+}
+
+.bcp-foot {
+  margin: 0;
+  font-size: 12px;
+  color: #64748b;
+}