chore: add min length to logo

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Joana Maia <jmaia@contractor.linuxfoundation.org>

Author: joanagmaia

backend/src/api/public/v1/organizations/createOrganization.ts

@@ -13,7 +13,7 @@ const bodySchema = z.object({
   name: z.string().trim().min(1),
   domain: z.string().trim().min(1),
   source: z.string().trim().min(1),
-  logo: z.string().trim().optional(),
+  logo: z.string().trim().min(1).optional(),
 })
 
 export async function createOrganization(req: Request, res: Response): Promise<void> {