feat: 新增创作中心（/studio），支持数据概览、内容管理、草稿箱、写文章

- 新增 StudioController，依赖 studioUseCase 接口，遵循 ISP 接口隔离
- PostRepo 新增 FindByUserIDAndStatus 方法，按用户+状态分页查询
- PostService 新增 ListByUser、GetOverview 及 StudioOverview 统计
- /studio 页面路由（概览/管理/草稿箱/写文章/数据分析）+ /api/studio API
- 复用 Vditor 编辑器，studio-editor.js 对接 /api/studio/posts 端点
- 新增 studio.css（B站风格三栏布局+统计卡片+状态筛选tabs）
- 模板引擎注册 add/subtract 函数，分页模板中直接使用

internal/router/api.go

@@ -58,4 +58,17 @@ func setupAPIRoutes(r *gin.Engine, cfg *config.Config, d *dependencies) {
 		postsAPI.POST("/:id/submit", d.postCtrl.Submit)
 		postsAPI.POST("/upload-image", d.postCtrl.UploadImage)
 	}
+
+	// --- 创作中心 API（需登录） ---
+	studioAPI := r.Group("/api/studio")
+	studioAPI.Use(d.authMdw.Required())
+	studioAPI.Use(middleware.CSRF(cfg))
+	{
+		studioAPI.GET("/overview", d.studioCtrl.OverviewAPI)
+		studioAPI.GET("/posts", d.studioCtrl.ListPostsAPI)
+		studioAPI.POST("/posts", d.studioCtrl.Create)
+		studioAPI.PUT("/posts/:id", d.studioCtrl.Update)
+		studioAPI.DELETE("/posts/:id", d.studioCtrl.Delete)
+		studioAPI.POST("/posts/:id/submit", d.studioCtrl.Submit)
+	}
 }

internal/router/deps_core.go

@@ -18,6 +18,7 @@ type dependencies struct {
 	messageCtrl     *controller.MessageController
 	postCtrl        *controller.PostController
 	spaceCtrl       *controller.SpaceController
+	studioCtrl      *controller.StudioController
 	adminPostCtrl   *adminCtrl.AdminPostController
 	adminCtrl       *adminCtrl.AdminController
 	auditCtrl       *adminCtrl.AuditController

internal/router/deps_extra.go

@@ -35,6 +35,7 @@ func buildDeps(db *gorm.DB, cfg *config.Config, siteSettings *config.SiteSetting
 	shortcodeSvc := service.NewShortcodeService()
 	postCtrl := controller.NewPostController(postService, shortcodeSvc)
 	adminPostCtrl := adminCtrl.NewAdminPostController(postService)
+	studioCtrl := controller.NewStudioController(postService)
 
 	// 用户空间
 	spaceService := service.NewSpaceService(userRepo, postRepo)
@@ -43,6 +44,7 @@ func buildDeps(db *gorm.DB, cfg *config.Config, siteSettings *config.SiteSetting
 	return &dependencies{
 		authCtrl: authCtrl, authMdw: authMdw, settingsCtrl: settingsCtrl,
 		messageCtrl: messageController, postCtrl: postCtrl, spaceCtrl: spaceCtrl,
+		studioCtrl: studioCtrl,
 		adminPostCtrl: adminPostCtrl,
 		adminCtrl: adminController, auditCtrl: auditController,
 		siteSettingCtrl: siteSettingController, tokenCtrl: authCtrl,

internal/router/frontend.go

@@ -43,6 +43,17 @@ func setupFrontendRoutes(r *gin.Engine, cfg *config.Config, d *dependencies) {
 		pages.GET("/posts/new", d.authMdw.Required(), d.postCtrl.NewPage)
 		pages.GET("/posts/:id", d.postCtrl.ShowPage)
 		pages.GET("/posts/:id/edit", d.authMdw.Required(), d.postCtrl.EditPage)
+
+		// 创作中心（需登录）
+		studioPages := pages.Group("/studio")
+		studioPages.Use(d.authMdw.Required())
+		{
+			studioPages.GET("", d.studioCtrl.OverviewPage)
+			studioPages.GET("/posts", d.studioCtrl.PostsPage)
+			studioPages.GET("/drafts", d.studioCtrl.DraftsPage)
+			studioPages.GET("/write", d.studioCtrl.WritePage)
+			studioPages.GET("/analytics", d.studioCtrl.AnalyticsPage)
+		}
 	}
 
 	// 认证页面（已登录自动跳走）