feat: Studio 概览/分析补上阅读量 + 详情页 meta 行改版

- StudioOverview 新增 TotalViews 字段，GetOverviewByUserID 查询含 SUM(views_count)
- 新增 ViewTrendStore 接口和 AggregateViewsByAuthor，UNION ALL 合并已登录+访客阅读日志按日期聚合
- 数据分析页面新增阅读量趋势折线图（绿色，Chart.js）
- 概览和数据分析页面新增总阅读量统计卡片
- 详情页 meta 行改为标签格式：作者/阅读/点赞/收藏/评论/发布时间
- 移除详情页公开状态徽章，已锁定+理由仅作者可见

internal/service/post_service.go

@@ -132,11 +132,12 @@ type StudioOverview struct {
 	PendingCount int64 `json:"pending_count"`
 	ApprovedCount int64 `json:"approved_count"`
 	RejectedCount int64 `json:"rejected_count"`
+	TotalViews   int64 `json:"total_views"`
 }
 
 // GetOverview 获取创作中心数据概览（单次 GROUP BY 查询）
 func (s *PostService) GetOverview(userID uint) (*StudioOverview, error) {
-	totalPosts, draftCount, pendingCount, approvedCount, rejectedCount, err := s.repo.GetOverviewByUserID(userID)
+	totalPosts, draftCount, pendingCount, approvedCount, rejectedCount, totalViews, err := s.repo.GetOverviewByUserID(userID)
 	if err != nil {
 		return nil, err
 	}
@@ -146,6 +147,7 @@ func (s *PostService) GetOverview(userID uint) (*StudioOverview, error) {
 		PendingCount:  pendingCount,
 		ApprovedCount: approvedCount,
 		RejectedCount: rejectedCount,
+		TotalViews:    totalViews,
 	}, nil
 }
 

internal/service/repository.go

@@ -37,7 +37,7 @@ type postStore interface {
 	FindPageable(keyword string, offset, limit int) ([]model.Post, int64, error)
 	FindAdminPageable(keyword, status string, offset, limit int) ([]model.Post, int64, error)
 	FindByUserIDAndStatus(userID uint, status string, offset, limit int) ([]model.Post, int64, error)
-	GetOverviewByUserID(userID uint) (totalPosts, draftCount, pendingCount, approvedCount, rejectedCount int64, err error)
+	GetOverviewByUserID(userID uint) (totalPosts, draftCount, pendingCount, approvedCount, rejectedCount, totalViews int64, err error)
 	FindPendingRevisions(keyword string, offset, limit int) ([]model.Post, int64, error)
 	Update(post *model.Post) error
 	SoftDelete(id uint) error
@@ -231,3 +231,8 @@ type LikeTrendStore interface {
 type FavoriteTrendStore interface {
 	AggregateFavoritesByAuthor(userID uint, since string) ([]TrendPoint, error)
 }
+
+// ViewTrendStore 阅读量趋势聚合（ISP）
+type ViewTrendStore interface {
+	AggregateViewsByAuthor(userID uint, since string) ([]TrendPoint, error)
+}

internal/service/trends_service.go

@@ -12,6 +12,7 @@ type TrendResult struct {
 	Comments  []TrendPoint `json:"comments"`
 	Likes     []TrendPoint `json:"likes"`
 	Favorites []TrendPoint `json:"favorites"`
+	Views     []TrendPoint `json:"views"`
 }
 
 // TrendsService Studio 趋势分析服务
@@ -20,15 +21,17 @@ type TrendsService struct {
 	commentRepo  CommentTrendStore
 	likeRepo     LikeTrendStore
 	favoriteRepo FavoriteTrendStore
+	viewRepo     ViewTrendStore
 }
 
 // NewTrendsService 构造函数
-func NewTrendsService(energyRepo EnergyTrendStore, commentRepo CommentTrendStore, likeRepo LikeTrendStore, favoriteRepo FavoriteTrendStore) *TrendsService {
+func NewTrendsService(energyRepo EnergyTrendStore, commentRepo CommentTrendStore, likeRepo LikeTrendStore, favoriteRepo FavoriteTrendStore, viewRepo ViewTrendStore) *TrendsService {
 	return &TrendsService{
 		energyRepo:   energyRepo,
 		commentRepo:  commentRepo,
 		likeRepo:     likeRepo,
 		favoriteRepo: favoriteRepo,
+		viewRepo:     viewRepo,
 	}
 }
 
@@ -73,6 +76,15 @@ func (s *TrendsService) GetTrends(userID uint, since string) (*TrendResult, erro
 		return nil
 	})
 
+	g.Go(func() error {
+		var err error
+		result.Views, err = s.viewRepo.AggregateViewsByAuthor(userID, since)
+		if err != nil {
+			return fmt.Errorf("查询阅读趋势: %w", err)
+		}
+		return nil
+	})
+
 	if err := g.Wait(); err != nil {
 		return nil, err
 	}