add: some user api and all api desc

app/objectstory/api/internal/middleware/filesizelimitMiddleware.go

@@ -0,0 +1,22 @@
+// Code scaffolded by goctl. Safe to edit.
+// goctl 1.9.2
+
+package middleware
+
+import "net/http"
+
+type FileSizeLimitMiddleware struct {
+}
+
+func NewFileSizeLimitMiddleware() *FileSizeLimitMiddleware {
+	return &FileSizeLimitMiddleware{}
+}
+
+func (m *FileSizeLimitMiddleware) Handle(next http.HandlerFunc) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		// TODO generate middleware implement function, delete after code implementation
+
+		// Passthrough to next handler if need
+		next(w, r)
+	}
+}