feat(shares): add Share Withdrawal maker-checker workflow with GL settlement

Clerk submits a governed share redemption request (shares, Board Resolution
No., Meeting Date, settlement Payment Type); Bank Manager reviews with a
live backend-validated checklist (account/GL state, not just submit-time
snapshot) before approving, which redeems the shares and settles the
linked savings account in one transaction. Adds a Passbook tab to the
Share Account view, a reusable search-select control, and a Savings
Product "Map Payment Types to Specific Funds" fund-source override (only
Loan Products had this before) so settlement can be GL-mapped correctly.

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

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

@@ -0,0 +1,53 @@
+/**
+ * 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 { Injectable, inject } from '@angular/core';
+import { HttpClient, HttpParams } from '@angular/common/http';
+import { Observable } from 'rxjs';
+
+/** HTTP service for the Share Withdrawal (redeem shares) maker-checker workflow — mirrors
+ *  ClerkWithdrawalService (cash withdrawal), adapted for shares. */
+@Injectable({ providedIn: 'root' })
+export class ClerkShareWithdrawalService {
+  private http = inject(HttpClient);
+
+  submit(data: any): Observable<any> {
+    return this.http.post('/clerk/share-withdrawal-requests', data);
+  }
+
+  getMyRequests(status?: string, offset = 0, limit = 20, fromDate?: string, toDate?: string): Observable<any> {
+    let params = new HttpParams().set('offset', String(offset)).set('limit', String(limit));
+    if (status) params = params.set('status', status);
+    if (fromDate) params = params.set('fromDate', fromDate);
+    if (toDate) params = params.set('toDate', toDate);
+    return this.http.get('/clerk/share-withdrawal-requests/my', { params });
+  }
+
+  getPendingRequests(status = 'PENDING', offset = 0, limit = 20, fromDate?: string, toDate?: string): Observable<any> {
+    let params = new HttpParams().set('status', status).set('offset', String(offset)).set('limit', String(limit));
+    if (fromDate) params = params.set('fromDate', fromDate);
+    if (toDate) params = params.set('toDate', toDate);
+    return this.http.get('/clerk/share-withdrawal-requests', { params });
+  }
+
+  getById(id: number): Observable<any> {
+    return this.http.get(`/clerk/share-withdrawal-requests/${id}`);
+  }
+
+  validate(id: number): Observable<any> {
+    return this.http.post(`/clerk/share-withdrawal-requests/${id}/validate`, {});
+  }
+
+  approve(id: number): Observable<any> {
+    return this.http.post(`/clerk/share-withdrawal-requests/${id}/approve`, {});
+  }
+
+  reject(id: number, reason: string): Observable<any> {
+    return this.http.post(`/clerk/share-withdrawal-requests/${id}/reject`, { reason });
+  }
+}