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/cashier.service.ts

@@ -32,9 +32,6 @@ export class CashierService {
   getCashExchange(id: number): Observable<any> {
     return this.http.get(`/cashexchange/${id}`);
   }
-  reverseCashExchange(id: number, reason: string): Observable<any> {
-    return this.http.post(`/cashexchange/${id}/reverse`, { reason });
-  }
 
   // ── Tellers / Cashiers ──
   getTellers(officeId?: number): Observable<any[]> {
@@ -60,9 +57,6 @@ export class CashierService {
   getCashTransferById(id: number): Observable<any> {
     return this.http.get(`/cashtransfer/${id}`);
   }
-  reverseCashTransfer(id: number, reason: string): Observable<any> {
-    return this.http.post(`/cashtransfer/${id}/reverse`, { reason });
-  }
 
   // ── Cash Settlement ──
   createCashSettlement(data: any): Observable<any> {
@@ -75,9 +69,6 @@ export class CashierService {
   getCashSettlementById(id: number): Observable<any> {
     return this.http.get(`/cashsettlement/${id}`);
   }
-  reverseCashSettlement(id: number, reason: string): Observable<any> {
-    return this.http.post(`/cashsettlement/${id}/reverse`, { reason });
-  }
 
   // ── Inter-cashier Transfer ──
   createInterCashierTransfer(data: any): Observable<any> {
@@ -90,8 +81,10 @@ export class CashierService {
   getInterCashierById(id: number): Observable<any> {
     return this.http.get(`/cashintercashier/${id}`);
   }
-  reverseInterCashierTransfer(id: number, reason: string): Observable<any> {
-    return this.http.post(`/cashintercashier/${id}/reverse`, { reason });
+  /** One cashier's details, today's vault allocation and denomination-wise cash, for either side of a transfer. */
+  getInterCashierCashierSummary(cashierId: number, date: string): Observable<any> {
+    const params = new HttpParams().set('cashierId', cashierId).set('date', date);
+    return this.http.get<any>('/cashintercashier/cashier-summary', { params });
   }
 
   // ── Reconciliation ──
@@ -318,6 +311,16 @@ export class CashierService {
     if (asOfDate) params = params.set('asOfDate', asOfDate);
     return this.http.get('/cashreports/vault-position', { params });
   }
+  /**
+   * Denomination-wise cash the whole branch holds: its vault(s) plus every cashier's drawer, with the day's
+   * exchange movement beside it. Not for a cashier -- the server refuses it.
+   */
+  branchCashPosition(asOfDate?: string, officeId?: number): Observable<any> {
+    let params = new HttpParams();
+    if (asOfDate) params = params.set('asOfDate', asOfDate);
+    if (officeId) params = params.set('officeId', String(officeId));
+    return this.http.get('/cashreports/branch-position', { params });
+  }
   excessTransactionReport(threshold: number, fromDate?: string, toDate?: string): Observable<any[]> {
     let params = new HttpParams().set('threshold', String(threshold));
     if (fromDate) params = params.set('fromDate', fromDate);