feat(fixed-deposits): FD interest posting approval UI

Adds the FD Interest Posting Reports screen (due-without-report,
generate/approve, branch and head-office scope, posting detail,
live preview, head-office summary), a nav entry under Reports, the
route, and Branch Day Closing's fixed-deposit-due section and
approval-pending warning banner that blocks closing the day.

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

src/app/cashier/branch-day/branch-day.component.scss

@@ -195,6 +195,75 @@
     font-size: 11px;
     color: #94a3b8;
   }
+
+  /* Names the block, for the interest panels that sit beside the cash arithmetic. */
+  &__head {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    margin-bottom: 6px;
+    padding-bottom: 6px;
+    border-bottom: 1px solid #e2e8f0;
+    font-size: 13px;
+    color: #0d1b2a;
+
+    mat-icon {
+      font-size: 18px;
+      width: 18px;
+      height: 18px;
+      color: #1d4ed8;
+    }
+  }
+}
+
+/* Interest is money leaving as the day closes, not cash counted in the drawer. */
+.bd-calc--fd {
+  border-left: 3px solid #1d4ed8;
+}
+
+.bd-fd-ok,
+.bd-fd-pending {
+  display: inline-block;
+  margin-left: 6px;
+  padding: 1px 7px;
+  border-radius: 999px;
+  font-size: 10px;
+  font-weight: 700;
+  letter-spacing: 0.02em;
+}
+
+.bd-fd-ok {
+  background: #dcfce7;
+  color: #15803d;
+}
+
+.bd-fd-pending {
+  background: #fef3c7;
+  color: #b45309;
+}
+
+/* Why the close will be refused, said before the count is filled in rather than after. */
+.bd-warn {
+  display: flex;
+  align-items: flex-start;
+  gap: 8px;
+  max-width: 640px;
+  margin-bottom: 14px;
+  padding: 10px 14px;
+  background: #fffbeb;
+  border: 1px solid #fcd34d;
+  border-radius: 8px;
+  font-size: 12px;
+  line-height: 1.5;
+  color: #78350f;
+
+  mat-icon {
+    flex-shrink: 0;
+    font-size: 20px;
+    width: 20px;
+    height: 20px;
+    color: #b45309;
+  }
 }
 
 .bd-hint {