feat(investment): interest voucher posting UI, home pending alert and day-end reminder

src/app/home/home.component.html

@@ -47,6 +47,23 @@
     </div>
   </div>
 
+  <!-- Pending investment interest vouchers (coupon / provision due now or within two days) -->
+  @if (pendingInvestmentInterest.length) {
+    <a class="investment-interest-alert" routerLink="/investment/bonds" [queryParams]="{ tab: 'interest' }">
+      <span class="iia-icon">🔔</span>
+      <span class="iia-text">
+        <strong>{{ pendingInvestmentInterest.length }} investment interest voucher(s) pending</strong>
+        @for (t of pendingInvestmentInterest; track t.purchaseId) {
+          <span class="iia-item">
+            {{ t.lineType === 'COUPON' ? 'Coupon' : 'Provision' }} · {{ t.scriptDesc }} · deal {{ t.dealNo }} ·
+            {{ t.overdue ? 'overdue since ' + t.intDate : t.postable ? 'due today' : 'due ' + t.intDate }}
+          </span>
+        }
+      </span>
+      <span class="iia-action">Open Interest Entry →</span>
+    </a>
+  }
+
   <!-- Quick Action Cards -->
   <div class="quick-actions">
     <a class="qa-card" [routerLink]="['/dashboard']" #buttonDashboard>