feat: add contract extension request functionality

- Implemented  method in  to allow customers to request an extension for expired contracts.
- Added  component in  for users to initiate extension requests.
- Updated  to include logic for handling extension requests for expired contracts.
- Enhanced  to display extension request options and status.
- Created migration to add  and  columns to the contracts table.
- Added unit tests for contract extension request and handling in .
- Defined DTOs for request and extension in .
- Updated types in  to include new fields related to contract extensions.

apps/edr-freight-api/src/modules/contracts/contracts.repository.ts

@@ -135,7 +135,9 @@ export class ContractsRepository extends BaseRepository<Contract> {
     const result = await this.repository
       .createQueryBuilder()
       .update(Contract)
-      .set({ status: 'EXPIRED' })
+      // SET reads the pre-update row, so status_before_expiry gets the status
+      // being replaced — the value ContractTransitionService.extend restores.
+      .set({ status: 'EXPIRED', statusBeforeExpiry: () => 'status' })
       .where('deleted_at IS NULL')
       .andWhere('status NOT IN (:...terminal)', { terminal: TERMINAL_CONTRACT_STATUSES })
       .andWhere('contract_valid_until IS NOT NULL AND contract_valid_until < :now', {
@@ -155,7 +157,7 @@ export class ContractsRepository extends BaseRepository<Contract> {
     const result = await this.repository
       .createQueryBuilder()
       .update(Contract)
-      .set({ status: 'EXPIRED' })
+      .set({ status: 'EXPIRED', statusBeforeExpiry: () => 'status' })
       .where('id = :id', { id })
       .andWhere('deleted_at IS NULL')
       .andWhere('status NOT IN (:...terminal)', { terminal: TERMINAL_CONTRACT_STATUSES })