project might have a license

src/models/licenseSchema.ts

+import { z } from 'zod';
+
+export const licenseSchema = z.object({
+  id: z.number().int().positive(),
+  name: z.string(),
+  content: z.string(),
+});

src/models/projectSchema.ts

 import { z } from 'zod';
+import { licenseSchema } from '@/models/licenseSchema';
 import { disease } from './disease';
 import { organism } from './organism';
 import { overviewImageView } from './overviewImageView';
@@ -23,4 +24,7 @@ export const projectSchema = z.object({
   creationDate: z.string(),
   overviewImageViews: z.array(overviewImageView),
   topOverviewImage: overviewImageView.nullable(),
+  license: z.optional(licenseSchema),
+  customLicenseName: z.string().nullable(),
+  customLicenseUrl: z.string().nullable(),
 });