feat(overview) : add YouTube video section

lib/guides/schemas.ts

@@ -1,6 +1,7 @@
 import * as z from "zod";
 
 import { targetStatOptions } from "@/lib/guides/stats";
+import { parseYouTubeUrl } from "@/lib/guides/youtube";
 
 export const guideSectionKinds = ["weapon", "artifact", "constellations", "team"] as const;
 export type GuideSectionKind = (typeof guideSectionKinds)[number];
@@ -14,10 +15,20 @@ export const createGuideSchema = z.strictObject({
   overview: z.string().trim().max(500),
 });
 
+const youtubeUrlSchema = z.string().trim().max(2_048).optional().transform((value, context) => {
+  if (value === undefined) return undefined;
+  if (!value) return null;
+  const video = parseYouTubeUrl(value);
+  if (video) return video.watchUrl;
+  context.addIssue({ code: "custom", message: "กรุณาใส่ลิงก์วิดีโอ YouTube ที่ถูกต้อง" });
+  return z.NEVER;
+});
+
 export const updateGuideSchema = z.strictObject({
   expectedVersion: z.number().int().positive(),
   coverMediaId: z.string().uuid(),
   overview: z.string().trim().min(1).max(500),
+  youtubeUrl: youtubeUrlSchema,
 });
 
 export const weaponSectionSchema = z.strictObject({