fix detect-browser load

hydro/handler/record.ts

@@ -158,7 +158,7 @@ class RecordDetailConnectionHandler extends contest.ContestHandlerMixin(Connecti
         }
         this.rid = rid.toString();
         bus.subscribe(['record_change'], this, 'onRecordChange');
-        this.onRecordChange({ value: rdoc });
+        this.onRecordChange({ value: { rdoc } });
     }
 
     async onRecordChange(data) {

hydro/lib/useragent.ts

@@ -1,4 +1,4 @@
-import browser from 'detect-browser';
+import * as browser from 'detect-browser';
 
 export function parse(str: string) {
     return browser.parseUserAgent(str);