implement contract cancellation feature and update contract statuses

- Added functionality to cancel contracts, allowing users to provide a reason for cancellation.
- Updated contract statuses to include SUSPENDED and changed CLOSED to COMPLETED.
- Enhanced the UI to reflect the new cancellation option and updated messaging for contract statuses.
- Refactored contract booking actions to accommodate changes in booking logic for ONE_TIME and GENERAL contracts.
- Removed clearance document management from the contract detail page, as it is now handled per booking.
- Introduced a SQL script to reset bookings and train schedules for development purposes.

apps/edr-freight-api/src/modules/contracts/dto/approve-step.dto.ts

@@ -50,3 +50,17 @@ export class CancelContractDto {
   @IsString()
   reason?: string;
 }
+
+export class SuspendContractDto {
+  @ApiProperty({ description: 'Why the contract is being frozen — shown to the customer' })
+  @IsString()
+  @MinLength(1)
+  reason!: string;
+}
+
+export class ResumeContractDto {
+  @ApiPropertyOptional({ description: 'Optional note recorded when the suspension is lifted' })
+  @IsOptional()
+  @IsString()
+  note?: string;
+}