短剧 SEO 标题跟随 Playlet.Title 同步

每次创建/更新时,把 Playlet.Title 覆盖写入 SeoInfo.Title,与
Description(desc + 自动模板) 一起保持前后台 SEO 字段同步。

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

web/service/srv_playlet/playlet.go

@@ -1623,6 +1623,10 @@ func applyPlayletDescription(doc *playletmod.Playlet) {
 	}
 	doc.Description = description
 	doc.SeoInfo.Description = description
+	// SEO 标题跟随 Playlet.Title 同步。
+	if title := strings.TrimSpace(doc.Title); title != "" {
+		doc.SeoInfo.Title = title
+	}
 }
 
 func applyPlayletDescriptionOnUpdate(exist *playletmod.Playlet, req *proto.PlayletUpdateReq, setDoc bson.M) {
@@ -1636,6 +1640,10 @@ func applyPlayletDescriptionOnUpdate(exist *playletmod.Playlet, req *proto.Playl
 	if playName == "" {
 		return
 	}
+	title := strings.TrimSpace(exist.Title)
+	if req.Title != nil {
+		title = strings.TrimSpace(*req.Title)
+	}
 	desc := exist.Desc
 	if req.Desc != nil {
 		desc = strings.TrimSpace(*req.Desc)
@@ -1658,7 +1666,11 @@ func applyPlayletDescriptionOnUpdate(exist *playletmod.Playlet, req *proto.Playl
 		}
 	}
 	seo = normalizeSeoValue(seo)
+	// 每次 description 更新 → SEO 描述、SEO 标题同步。
 	seo.Description = description
+	if title != "" {
+		seo.Title = title
+	}
 	setDoc["seoInfo"] = seo
 }