Restyle Workflow Graph (#36912)

Follow GitHub's style and fine tune colors & layouts.

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>

web_src/js/components/ActionRunView.ts

@@ -89,6 +89,7 @@ export function createLogLineMessage(line: LogLine, cmd: LogLineCommand | null)
 
 export function createEmptyActionsRun(): ActionsRun {
   return {
+    repoId: 0,
     link: '',
     title: '',
     titleHTML: '',