feat(clerk): add clerk-facing Cheque Book screen and shell nav wiring

Adds a customer-account-scoped Cheque Book view under Clerk > Account
Facilities (list + leaf detail, with stop-payment/report-lost/mark-used/
return actions), reachable via a new hover dropdown on the Account
Facilities nav item. Also refreshes the Account Facilities page layout,
and carries over a few chequebook service/detail-dialog fixes from the
back-office module (used-leaf display, leaf-lookup dialog polish).

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

src/app/clerk/cheque-book/leaf-action-dialog/leaf-action-dialog.component.scss

@@ -0,0 +1,87 @@
+/**
+ * Copyright since 2025 Mifos Initiative
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+.la-form-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
+  gap: 14px;
+  padding-top: 4px;
+}
+
+.la-field {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+
+  &__lbl {
+    font-size: 11px;
+    font-weight: 700;
+    color: #64748b;
+    text-transform: uppercase;
+    letter-spacing: 0.05em;
+  }
+
+  &__input {
+    height: 36px;
+    padding: 0 10px;
+    border: 1px solid #e2e8f0;
+    border-radius: 7px;
+    font-size: 13px;
+    font-family: inherit;
+    color: #0d1b2a;
+
+    &:focus {
+      outline: none;
+      border-color: #0f4f3c;
+    }
+  }
+
+  &__hint {
+    font-size: 11px;
+    color: #94a3b8;
+  }
+}
+
+.la-btn {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  border-radius: 7px;
+  font-family: inherit;
+  font-weight: 600;
+  cursor: pointer;
+  border: 1px solid #e2e8f0;
+  transition: background 0.15s;
+  height: 34px;
+  padding: 0 16px;
+  font-size: 13px;
+  background: #fff;
+  color: #0d1b2a;
+
+  &:hover {
+    background: #f0fdf4;
+    border-color: #0f4f3c;
+    color: #0f4f3c;
+  }
+
+  &--primary {
+    background: #0f4f3c;
+    border-color: #0f4f3c;
+    color: #fff;
+
+    &:hover {
+      background: #0a3d2e;
+      color: #fff;
+    }
+
+    &:disabled {
+      opacity: 0.5;
+      cursor: not-allowed;
+    }
+  }
+}