chore: ai, public course and other ui improvements

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

@@ -0,0 +1,19 @@
+import * as z from 'zod';
+
+import { ZSlug } from '../shared/slug';
+
+/**
+ * Route params + query schemas for the anonymous, SEO-indexable public course
+ * surface under `(org-site)/course/[courseSlug]`.
+ */
+
+export const ZPublicCourseBySlugParam = z.object({
+  courseSlug: ZSlug
+});
+export type TPublicCourseBySlugParam = z.infer<typeof ZPublicCourseBySlugParam>;
+
+export const ZPublicCourseItemParam = z.object({
+  courseSlug: ZSlug,
+  itemSlug: ZSlug
+});
+export type TPublicCourseItemParam = z.infer<typeof ZPublicCourseItemParam>;