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/core/shell/shell.component.html

@@ -99,6 +99,19 @@
             </svg>
             My Disbursements
           </a>
+          <a
+            class="cashier-nav__item cashier-nav__item--sec"
+            [class.cashier-nav__item--active]="currentUrl.includes('/clerk/share-withdrawal-request')"
+            [routerLink]="['/clerk/share-withdrawal-requests']"
+          >
+            <svg width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+              <circle cx="12" cy="12" r="9" />
+              <path
+                d="M9.5 9a2.5 2.5 0 0 1 2.5-1.5c1.4 0 2.5.8 2.5 2s-1 1.5-2.5 1.9c-1.5.4-2.5.9-2.5 2.1s1.1 2 2.5 2 2.5-.7 2.5-1.6"
+              />
+            </svg>
+            My Share Requests
+          </a>
           @if (clerkAccountLoaded) {
             <div class="cashier-nav__item-wrap">
               <a

src/app/core/shell/shell.component.ts

@@ -179,9 +179,9 @@ export class ShellComponent implements OnInit, OnDestroy {
     return this.router.url;
   }
 
-  /** True on the manager's full-screen withdrawal-request review screen. */
+  /** True on the manager's full-screen withdrawal-request (cash or share) review screen. */
   get isWithdrawalReviewUrl(): boolean {
-    return /\/checker-inbox-and-tasks\/withdrawal-requests\/\d+\/review/.test(this.router.url);
+    return /\/checker-inbox-and-tasks\/(share-)?withdrawal-requests\/\d+\/review/.test(this.router.url);
   }
 
   /** ESC key — exit fullscreen at Clerk Dashboard / Election / review screen, restoring full shell header. */