feat: first run download db

frontend/src/pages/Panel.tsx

@@ -65,7 +65,7 @@ const Panel: React.FC = () => {
       } else {
         setCheckDisabled(true)
         setMacInputDisabled(true)
-        // download
+        setIsOpen(true)
       }
     })
   }, [])
@@ -213,6 +213,8 @@ const Panel: React.FC = () => {
               if (res) {
                 QueryVersion().then(res => {
                   setDatabaseDate(res)
+                  setMacInputDisabled(false)
+                  setCheckDisabled(false)
                 })
               }
             })

service/service.go

@@ -66,6 +66,9 @@ func (helper *SQLiteHelper) InitSQLiteHelper() bool {
 }
 
 func (helper *SQLiteHelper) Close() {
+	if helper.db == nil {
+		return
+	}
 	helper.db.Close()
 }