feat(chequebook): add cheque book module with Maker-Checker workflow

Adds cheque series creation, stock receive, cheque leaf request/lookup,
and stop-payment/lost-reporting flows with Maker-Checker approval and
a checker-inbox tab for pending chequebook requests.

src/app/chequebook/cheque-series/cheque-series.component.scss

@@ -0,0 +1,93 @@
+/**
+ * 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/.
+ */
+
+.container {
+  padding: 16px;
+}
+
+.page-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  margin-bottom: 16px;
+}
+
+.header-actions {
+  display: flex;
+  gap: 12px;
+}
+
+.filter-row {
+  display: flex;
+  gap: 8px;
+  margin-bottom: 16px;
+
+  button.active {
+    background: rgb(25 118 210 / 12%);
+  }
+}
+
+.add-form {
+  margin-bottom: 16px;
+}
+
+.form-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
+  gap: 12px 20px;
+  margin-bottom: 8px;
+}
+
+mat-form-field {
+  width: 100%;
+}
+
+.form-actions {
+  display: flex;
+  justify-content: flex-end;
+  gap: 12px;
+  margin-top: 16px;
+}
+
+.table-wrapper {
+  overflow-x: auto;
+  background: #fff;
+}
+
+table {
+  width: 100%;
+}
+
+td.num,
+th.num {
+  text-align: right;
+  font-variant-numeric: tabular-nums;
+}
+
+.pill {
+  font-size: 11px;
+  padding: 2px 8px;
+  border-radius: 6px;
+  font-weight: 600;
+
+  &.ok {
+    background: #dff5e8;
+    color: #28c07a;
+  }
+
+  &.neutral {
+    background: #e0e0e0;
+    color: #757575;
+  }
+}
+
+.empty-state {
+  padding: 24px;
+  text-align: center;
+  color: rgb(0 0 0 / 50%);
+}