feat: add hazardous goods declaration feature

- Introduced HazardDeclarationPanel component to display dangerous goods declaration details.
- Updated URL constants to include CLEARANCE_PROCEED endpoint for re-requesting operations.
- Enhanced permissions to include hazardous approval roles for contract approvals.
- Integrated HazardDeclarationPanel into ContractRequestDetailPage and ContractClearanceDetailPage.
- Added proceedToOperation method in bookings service for handling operation re-requests.
- Updated contract forms and schemas to include hazard class and UN number fields.
- Implemented validation for hazardous contracts in the contract creation flow.
- Added expiry notice functionality for contracts nearing validity end.
- Created tests for expiry notice calculations and labels.
- Updated UI components to reflect hazardous cargo information and validation errors.

apps/edr-freight-api/src/migrations/2920000000000-AddContractHazardDeclaration.ts

@@ -0,0 +1,34 @@
+import { MigrationInterface, QueryRunner } from 'typeorm';
+
+/**
+ * Hazardous contracts now declare WHAT the dangerous good is, not just that it
+ * exists: the UN/ADR class (CLASS_1..CLASS_9) and the shipment's UN number. Both
+ * are captured in the portal alongside the hazard documents and reviewed by the
+ * two hazardous approval desks.
+ *
+ * Nullable — non-hazardous contracts leave both null, and contracts created
+ * before this change have no declaration to backfill.
+ */
+export class AddContractHazardDeclaration2920000000000
+  implements MigrationInterface
+{
+  name = 'AddContractHazardDeclaration2920000000000';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      `ALTER TABLE freight.contracts ADD COLUMN IF NOT EXISTS hazard_class varchar(16);`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE freight.contracts ADD COLUMN IF NOT EXISTS un_number varchar(16);`,
+    );
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    await queryRunner.query(
+      `ALTER TABLE freight.contracts DROP COLUMN IF EXISTS un_number;`,
+    );
+    await queryRunner.query(
+      `ALTER TABLE freight.contracts DROP COLUMN IF EXISTS hazard_class;`,
+    );
+  }
+}