refactor: complete i18n rename recipients to people, finalize tests

src/schemas/person.schema.ts

@@ -10,6 +10,7 @@ const defaultPersonSchemaCopy: PersonSchemaCopy = {
   departmentRequired: "Department is required",
   emailInvalid: "Email format is invalid",
   idRequired: "ID is required",
+  userIdInvalid: "User ID must be a valid UUID",
 }
 
 const personDepartments = [
@@ -37,7 +38,11 @@ function buildPersonBaseSchema(copy: PersonSchemaCopy) {
     }),
     email: z.string().optional().nullable(),
     phone: z.string().optional().nullable(),
-    userId: z.string().uuid().optional().nullable(),
+    userId: z
+      .string()
+      .uuid({ error: copy.userIdInvalid })
+      .optional()
+      .nullable(),
   })
 }