feat(telegram): 订阅/下载补齐 year/rating/genres/原名/语言 富通知字段

- 模型: Subscription/DownloadTask 新增 OriginalName/OriginalLanguage/Year/
  Rating/Genres 列(GORM AutoMigrate 自动建列, 无需手写迁移)
- enrich 链路: displayMetadata 与 DownloadTaskMeta 携带新字段, 从
  SearchExternalMedia(TMDb/豆瓣/Bangumi)结果回填并持久化; 放宽提前返回
  门槛, 已有海报但缺新字段时仍补齐
- 通知: 订阅/下载完成事件 data 注入 year/rating/genres/original_title/
  original_language, 喂给作者富模板 formatTelegramMediaNotification
- 测试: 新增端到端断言, 验证补齐字段透传进 Telegram caption

internal/service/downloads.go

@@ -110,6 +110,11 @@ type DownloadTaskMeta struct {
 	MediaType            string
 	MediaCategory        string
 	SourceCategory       string
+	OriginalName         string
+	OriginalLanguage     string
+	Year                 int
+	Rating               float32
+	Genres               string
 	AllowExistingLibrary bool
 }
 
@@ -570,6 +575,11 @@ func (d *DownloadService) createTask(ctx context.Context, userID, urlStr, savePa
 		SavePath:             savePath,
 		MediaType:            meta.MediaType,
 		MediaCategory:        meta.MediaCategory,
+		OriginalName:         meta.OriginalName,
+		OriginalLanguage:     meta.OriginalLanguage,
+		Year:                 meta.Year,
+		Rating:               meta.Rating,
+		Genres:               meta.Genres,
 		Status:               "queued",
 		AllowExistingLibrary: meta.AllowExistingLibrary,
 	}
@@ -1381,6 +1391,21 @@ func (d *DownloadService) notifyDownloadComplete(ctx context.Context, torrent QB
 		if strings.TrimSpace(task.Overview) != "" {
 			data["overview"] = task.Overview
 		}
+		if strings.TrimSpace(task.OriginalName) != "" {
+			data["original_title"] = task.OriginalName
+		}
+		if strings.TrimSpace(task.OriginalLanguage) != "" {
+			data["original_language"] = task.OriginalLanguage
+		}
+		if task.Year > 0 {
+			data["year"] = task.Year
+		}
+		if task.Rating > 0 {
+			data["rating"] = task.Rating
+		}
+		if strings.TrimSpace(task.Genres) != "" {
+			data["genres"] = task.Genres
+		}
 	}
 	go func() {
 		ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)

internal/service/notify_channels_test.go

@@ -127,3 +127,42 @@ func TestTelegramDispatchUsesPhotoAndFormattedCaption(t *testing.T) {
 		}
 	}
 }
+
+// TestTelegramMediaTemplateRendersEnrichedFields 验证补齐的媒体字段
+// (年份/评分/类型/原名/语言)确实透传进 Telegram 富模板 caption。
+// 这是「模型/刮削链路补齐字段」与「作者富模板」对接的端到端断言。
+func TestTelegramMediaTemplateRendersEnrichedFields(t *testing.T) {
+	caption := formatTelegramNotification(NotifyEvent{
+		Type:    EventSubscriptionHit,
+		Title:   "MediaStationGo 订阅命中新资源",
+		Message: "订阅：遮天\n新增资源：1",
+		Data: map[string]interface{}{
+			"media_category":    "国漫",
+			"title":             "遮天",
+			"original_title":    "Shrouding the Heavens",
+			"original_language": "zh",
+			"year":              2023,
+			"rating":            8.6,
+			"genres":            "动画,奇幻",
+			"overview":          "荒古禁地中走出的少年。",
+			"tmdb_url":          "https://www.themoviedb.org/tv/223911",
+			"imdb_url":          "https://www.imdb.com/title/tt12345678/",
+		},
+	})
+	for _, want := range []string{
+		"#国漫",
+		"📺 中文片名：遮天",
+		"🧿 原始片名：Shrouding the Heavens",
+		"🌐 原始语言：中文",
+		"📅 发行年份：2023",
+		"⭐️ 评分：8.6",
+		"💎 类型：动画、奇幻",
+		"🪬 简介：",
+		`<a href="https://www.themoviedb.org/tv/223911">TMDB</a>`,
+		`<a href="https://www.imdb.com/title/tt12345678/">IMDB</a>`,
+	} {
+		if !strings.Contains(caption, want) {
+			t.Fatalf("caption missing %q:\n%s", want, caption)
+		}
+	}
+}

internal/service/subscription.go

@@ -469,11 +469,27 @@ func (s *SubscriptionService) notifySubscriptionHit(sub *model.Subscription, que
 		if strings.TrimSpace(sub.MediaCategory) != "" {
 			data["media_category"] = sub.MediaCategory
 		}
-		// 补充媒体通知模板(formatTelegramMediaNotification)所需字段:片名 / 简介 /
-		// 外链 / 资源标题(供模板提取季集 + 版本)。仅填现成可用的,缺失项模板会自动略过。
+		// 补充媒体通知模板(formatTelegramMediaNotification)所需字段:片名 / 原名 /
+		// 语言 / 年份 / 评分 / 类型 / 简介 / 外链 / 资源标题(供模板提取季集 + 版本)。
+		// 仅填现成可用的,缺失项模板会自动略过。
 		if strings.TrimSpace(sub.Name) != "" {
 			data["title"] = sub.Name
 		}
+		if strings.TrimSpace(sub.OriginalName) != "" {
+			data["original_title"] = sub.OriginalName
+		}
+		if strings.TrimSpace(sub.OriginalLanguage) != "" {
+			data["original_language"] = sub.OriginalLanguage
+		}
+		if sub.Year > 0 {
+			data["year"] = sub.Year
+		}
+		if sub.Rating > 0 {
+			data["rating"] = sub.Rating
+		}
+		if strings.TrimSpace(sub.Genres) != "" {
+			data["genres"] = sub.Genres
+		}
 		if strings.TrimSpace(sub.Overview) != "" {
 			data["overview"] = sub.Overview
 		}