enhance contract document rendering with detailed cargo information

- Updated ContractDocumentViewModelBuilder to include cargoTypeName, containerType, and cargoSummary in the schedule.
- Modified contract dynamic template tests to validate the new cargo fields.
- Enhanced contract renderer service tests to reflect changes in cargo data structure.
- Updated contract view model interface to include new cargo-related fields.
- Improved dynamic template rendering to display cargo type and container type.
- Refactored exchange settings controller and service to streamline error handling and feed status management.
- Introduced article HTML conversion functions to support Quill editor integration for structured article editing.
- Added tests for article HTML conversion to ensure correct round-trip processing of clauses and bullets.

apps/edr-freight-api/src/contracts/contract-dynamic-template.spec.ts

@@ -90,6 +90,8 @@ describe('dynamic template rendering (edr-dynamic.hbs)', () => {
       template: { ...meta, title: 'Bulk Import Contract', templateFile: 'edr-dynamic.hbs' },
       contractDate: '1 January 2026',
       contractYear: 2026,
+      contractStartDate: '1 January 2026',
+      contractEndDate: '31 December 2026',
       client: {
         companyName: 'Abyssinia Trading PLC',
         companyAddress: 'Bole Sub-city, Addis Ababa',
@@ -195,6 +197,24 @@ describe('dynamic template rendering (edr-dynamic.hbs)', () => {
     expect(html).toContain('#1b9e7a');
   });
 
+  it('shows the contract validity window in the commercial schedule annex', () => {
+    const html = renderer.render(dynamicView());
+    expect(html).toContain('Valid from');
+    expect(html).toContain('Valid until');
+    expect(html).toContain('1 January 2026');
+    expect(html).toContain('31 December 2026');
+  });
+
+  it('interpolates the start/end date placeholders inside article text', () => {
+    const view = dynamicView();
+    expect(
+      interpolateTemplateText(
+        'In force {{contractStartDate}} to {{contractEndDate}}.',
+        view,
+      ),
+    ).toBe('In force 1 January 2026 to 31 December 2026.');
+  });
+
   it('shows cargo type and container type in the commercial schedule annex', () => {
     const html = renderer.render(dynamicView());
     expect(html).toContain('Cargo type');

apps/edr-freight-api/src/contracts/contract-renderer.service.spec.ts

@@ -16,6 +16,8 @@ describe('ContractRendererService', () => {
       template,
       contractDate: '1 January 2026',
       contractYear: 2026,
+      contractStartDate: '1 January 2026',
+      contractEndDate: '31 December 2026',
       client: {
         companyName: 'Test Co',
         companyAddress: 'Addis Ababa',

apps/edr-freight-api/src/contracts/contract-view-model.builder.ts

@@ -150,6 +150,8 @@ export class ContractViewModelBuilder {
         year: 'numeric',
       }),
       contractYear: new Date().getFullYear(),
+      contractStartDate: this.formatDate(booking.contractValidFrom),
+      contractEndDate: this.formatDate(booking.contractValidUntil),
       client: {
         companyName: booking.company?.name ?? 'Client',
         companyAddress: this.valueOrDash(booking.company?.address),

apps/edr-freight-api/src/contracts/templates/edr-dynamic.hbs

@@ -143,6 +143,12 @@
             <th>Payment currency</th>
             <td>{{paymentArticle}}</td>
           </tr>
+          <tr>
+            <th>Valid from</th>
+            <td>{{contractStartDate}}</td>
+            <th>Valid until</th>
+            <td>{{contractEndDate}}</td>
+          </tr>
         </tbody>
       </table>