feat: 收藏夹系统 + Studio 趋势图 + 通知偏好设置

- 新增收藏夹系统 (Folder/FolderItem 模型、CRUD API、前端管理页)
- 新增文章详情页收藏按钮 (书签图标、ToggleFavorite 一键收藏)
- 新增 Studio 趋势图 (赋能值/评论/点赞/收藏 4 线图, 7d/30d/90d)
- 新增通知偏好设置页 (评论/回复/点赞/关注 4 类开关)
- 后端通知列表支持按偏好过滤 (排除已关闭的通知类型)
- 下载 Chart.js 到本地静态资源 (static/js/chart.umd.min.js)
- 补充收藏夹卡片、开关滑块、趋势图网格等 CSS 样式

internal/router/deps_extra.go

@@ -40,6 +40,7 @@ func buildDeps(db *gorm.DB, cfg *config.Config, siteSettings *config.SiteSetting
 
 	settingsCtrl := controller.NewSettingsController(authService, avatarSvc, auditService, sessionMgr, cfg, levelSvc)
 	settingsCtrl.WithEnergyService(energyService)
+	settingsCtrl.SetNotifyPrefReader(authService)
 	siteSettingController := adminCtrl.NewSiteSettingController(
 		service.NewSiteSettingService(siteSettings),
 		&service.AuditDefaults{
@@ -85,6 +86,15 @@ func buildDeps(db *gorm.DB, cfg *config.Config, siteSettings *config.SiteSetting
 	spaceService := service.NewSpaceService(userRepo, postRepo)
 	spaceCtrl := controller.NewSpaceController(spaceService)
 
+	// 收藏夹系统
+	favoriteRepo := repository.NewFavoriteRepo(db)
+	favoriteService := service.NewFavoriteService(db, favoriteRepo)
+	favoriteCtrl := controller.NewFavoriteController(favoriteService)
+
+	// Studio 趋势图
+	trendsService := service.NewTrendsService(energyRepo, commentRepo, reactionRepo, favoriteRepo)
+	studioCtrl.WithTrendsService(trendsService)
+
 	maintenanceMdw := middleware.NewMaintenanceMiddleware(cfg, siteSettings, sessionMgr)
 
 	return &dependencies{
@@ -105,5 +115,8 @@ func buildDeps(db *gorm.DB, cfg *config.Config, siteSettings *config.SiteSetting
 		reactionCtrl:    reactionCtrl,
 		followCtrl:      followCtrl,
 		followPageCtrl:  followPageCtrl,
+		favoriteCtrl:    favoriteCtrl,
+		favoriteService: favoriteService,
+		trendsService:   trendsService,
 	}
 }