fix(current-accounts): show bank/branch letterhead on passbook, matching savings

Current account passbook hardcoded "LincPay Co-operative Bank Ltd." and had
no branch identification line at all, unlike the savings passbook which
pulls the bank name and branch/IFSC/MICR details from the Institution and
Branch Profile. Wire up the same OrganizationService lookup so the current
account statement shows real bank/branch details too.

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

src/app/current-accounts/current-account-view/passbook-tab/passbook-tab.component.html

@@ -54,8 +54,8 @@
           <mat-icon>account_balance</mat-icon>
         </div>
         <div class="bank-name-block">
-          <div class="bank-title">LincPay Co-operative Bank Ltd.</div>
-          <div class="bank-subtitle">Current Account Statement</div>
+          <div class="bank-title">{{ bankName }}</div>
+          <div class="bank-subtitle">{{ bankSubtitle }}</div>
         </div>
       </div>
       <div class="statement-label">
@@ -64,6 +64,25 @@
       </div>
     </div>
 
+    <!-- Branch line — IFSC/MICR are how a UCB customer identifies which branch issued this, and are
+         needed for NEFT/RTGS/cheque printing, so a real passbook always carries them. -->
+    @if (branchName || ifscCode || micrCode) {
+      <div class="branch-line">
+        @if (branchName) {
+          <span>{{ branchName }} Branch</span>
+        }
+        @if (branchAddress) {
+          <span>{{ branchAddress }}</span>
+        }
+        @if (ifscCode) {
+          <span>IFSC: {{ ifscCode }}</span>
+        }
+        @if (micrCode) {
+          <span>MICR: {{ micrCode }}</span>
+        }
+      </div>
+    }
+
     <!-- Account Details -->
     <div class="account-details-band">
       <div class="account-details-grid">