feat(storage): 素材库容量 - 展示账号文件使用进度

Refs #227

Co-authored-by: MasterChiefCN <49179444+MasterChiefCN@users.noreply.github.com>

backend/internal/handler/user_data.go

@@ -106,6 +106,19 @@ func RegisterUserDataRoutes(r *gin.RouterGroup, svc *service.Service) {
 		}
 		ok(c, gin.H{"resources": resources})
 	})
+	r.GET("/resources/storage-usage", func(c *gin.Context) {
+		user, err := currentUser(c, svc)
+		if err != nil {
+			failService(c, err)
+			return
+		}
+		usage, err := svc.AccountFileStorageUsage(user.ID)
+		if err != nil {
+			failService(c, err)
+			return
+		}
+		ok(c, gin.H{"usage": usage})
+	})
 	r.POST("/resources", func(c *gin.Context) {
 		user, err := currentUser(c, svc)
 		if err != nil {