feat(shares): route dividend cash claims through cashier token disbursement

Cash claims now require a token at claim submission; a cashier redeems
it at Transaction Entry to record physical hand-over, mirroring the
existing clerk-withdrawal-request flow -- no double-disbursement, and
the manager never hands over cash directly at approval time.

Also: dividend-claim tokens fall back through the same TOK. NO. lookup
used for withdrawal requests, silenced against the global error
interceptor since the caller already handles every outcome; the account
summary card now shows "Dividend Claim" instead of a misleading "A/c
Savings" label when resolving one; and cash amounts are floored to
whole rupees client-side to match cash's whole-rupee denominations.

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

src/app/cashier/clerk-withdrawal.service.ts

@@ -7,8 +7,9 @@
  */
 
 import { Injectable, inject } from '@angular/core';
-import { HttpClient, HttpParams } from '@angular/common/http';
+import { HttpClient, HttpContext, HttpParams } from '@angular/common/http';
 import { Observable } from 'rxjs';
+import { SILENT_HTTP_ERROR } from '../core/http/silent-error.token';
 
 /** HTTP service for Clerk Withdrawal Request maker-checker workflow. */
 @Injectable({ providedIn: 'root' })
@@ -50,8 +51,12 @@ export class ClerkWithdrawalService {
     return this.http.post(`/clerk/withdrawal-requests/${id}/reject`, { reason });
   }
 
+  // Silenced: onTokNoBlur() probes this expecting a possible legitimate 404 (token not from this
+  // pool, could be a dividend claim's instead) and shows its own tailored message either way.
   getByToken(token: string): Observable<any> {
-    return this.http.get(`/clerk/withdrawal-requests/by-token/${encodeURIComponent(token)}`);
+    return this.http.get(`/clerk/withdrawal-requests/by-token/${encodeURIComponent(token)}`, {
+      context: new HttpContext().set(SILENT_HTTP_ERROR, true)
+    });
   }
 
   disburse(id: number, denominationData: string | null, transactionAmount?: number): Observable<any> {