Add build line to assignment

types/Dojo/AssignmentFile.ts

@@ -5,6 +5,7 @@ import { z }                   from 'zod';
 const AssignmentFile = z.object({
                                     dojoAssignmentVersion: z.number(),
                                     version              : z.number(),
+                                    buildLine            : z.string().optional(),
                                     immutable            : z.array(ImmutableFileDescriptor.transform(value => value as ImmutableFileDescriptor)),
                                     result               : z.object({
                                                                         container: z.string(),