feat(ctsclearing): single-panel signature verification for inward cheques

Adds a rich decide dialog for clerks verifying inward CTS cheques: cheque
images, all automatic validation results, and a mandatory signature-check
gate built from the account's mode of operation and joint holders (backed
by a new SignatoryService reusing the existing signature/document fetch
pattern from the cashier module).

Also adds a fullscreen compare mode: the cheque opens large with a shelf
of every mandatory signer's stored signature, which can be dragged onto
the cheque, resized, made semi-transparent, and zoomed, for a real
side-by-side signature match instead of squinting at a thumbnail.

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

src/app/ctsclearing/inward-batch-detail/inward-batch-detail.component.html

@@ -89,6 +89,9 @@
           @if (it.instrumentDate) {
             <span class="muted">Dated {{ it.instrumentDate | dateFormat }}</span>
           }
+          @if (it.instrumentTypeDescription || it.instrumentType) {
+            <span class="muted">{{ it.instrumentTypeDescription || it.instrumentType }}</span>
+          }
         </td>
       </ng-container>
       <ng-container matColumnDef="drawer">
@@ -98,6 +101,12 @@
           @if (it.clientName) {
             <span class="muted">{{ it.clientName }}</span>
           }
+          @if (it.drawerAccountNumberMasked) {
+            <span class="muted">Drawer a/c {{ it.drawerAccountNumberMasked }}</span>
+          }
+          @if (it.draweeBankName) {
+            <span class="muted">{{ it.draweeBankName }}</span>
+          }
         </td>
       </ng-container>
       <ng-container matColumnDef="payeeName">
@@ -167,6 +176,9 @@
           @if (it.iqaDetail) {
             <div class="muted">{{ it.iqaDetail }}</div>
           }
+          @if (it.iqaSubChecks) {
+            <div class="muted">{{ it.iqaSubChecks }}</div>
+          }
         </td>
       </ng-container>
       <ng-container matColumnDef="decision">
@@ -202,6 +214,9 @@
           @if (it.depositDate) {
             <span class="muted">Deposited {{ it.depositDate | dateFormat }}</span>
           }
+          @if (it.depositAccountNumber) {
+            <span class="muted">Deposit a/c {{ it.depositAccountNumber }}</span>
+          }
           @if (it.presentingBranchCode) {
             <span class="muted">Branch {{ it.presentingBranchCode }}</span>
           }