refactor: update landing page metadata schema

packages/core/src/services/agent/agent-tool-schemas.ts

@@ -7,7 +7,7 @@ import {
 } from '@cio/ai-assistant/tools';
 import { QUESTION_TYPE_REGISTRY } from '@cio/question-types';
 import { ZExerciseSectionAfterBehavior } from '@cio/utils/validation/exercise';
-import { ZCourseLandingPageUpdate, ZCourseLandingPageMetadataUpdate } from '@cio/utils/validation/course';
+import { ZCourseLandingPageUpdate, ZCourseLandingPageMetadataUpdateFields } from '@cio/utils/validation/course';
 
 // courseId is NOT a parameter — it's injected from the authenticated request context.
 // This prevents prompt injection from tricking the LLM into targeting another course.
@@ -251,7 +251,7 @@ export const agentLessonTabsOrder = z.array(
     name: z.string()
   })
 );
-export const agentLandingPageMetadataUpdate = ZCourseLandingPageMetadataUpdate.extend({
+export const agentLandingPageMetadataUpdate = ZCourseLandingPageMetadataUpdateFields.extend({
   lessonTabsOrder: agentLessonTabsOrder.optional(),
   requirements: z.string().optional().describe(LANDING_PAGE_SECTION_HTML_AGENT_HINT),
   description: z.string().optional().describe(LANDING_PAGE_METADATA_DESCRIPTION_SECTION_HINT),

packages/utils/src/validation/course/course.ts

@@ -357,14 +357,16 @@ const ZCourseMetadataFields = z.object({
 export const ZCourseMetadata = z.preprocess(preprocessCourseMetadata, ZCourseMetadataFields);
 export type TCourseMetadata = z.infer<typeof ZCourseMetadata>;
 
+export const ZCourseLandingPageMetadataUpdateFields = ZCourseMetadataFields.omit({ allowNewStudent: true }).extend({
+  allowNewStudent: z.boolean().optional(),
+  reward: ZCourseReward.partial().optional(),
+  instructor: ZCourseInstructor.partial().optional(),
+  certificate: ZCourseCertificate.partial().optional()
+});
+
 export const ZCourseLandingPageMetadataUpdate = z.preprocess(
   preprocessCourseMetadata,
-  ZCourseMetadataFields.omit({ allowNewStudent: true }).extend({
-    allowNewStudent: z.boolean().optional(),
-    reward: ZCourseReward.partial().optional(),
-    instructor: ZCourseInstructor.partial().optional(),
-    certificate: ZCourseCertificate.partial().optional()
-  })
+  ZCourseLandingPageMetadataUpdateFields
 );
 export type TCourseLandingPageMetadataUpdate = z.infer<typeof ZCourseLandingPageMetadataUpdate>;