✨ feat(vscode): webview 移交/接管按钮、选人弹窗与待接管角标

Claude-Session: https://claude.ai/code/session_011cEyL6k351U2BzX1Qmygph

vscode/webview-ui/src/components/BottomTabs.tsx

@@ -50,6 +50,10 @@ interface BottomTabsProps {
   onUpdateBrainstormProfilePath: (issueNumber: number, brainstormProfilePath: string) => void
   onUpdateTestProfilePath: (issueNumber: number, testProfilePath: string) => void
   onOpenLogs: () => void
+  me?: string
+  onStartHandoff: (issueNumber: number) => void
+  onAcceptHandoff: (issueNumber: number) => void
+  isHandoffRunning: (issueNumber: number) => boolean
 
   // Profile tab props
   profileData: ProfilesData
@@ -138,6 +142,10 @@ export function BottomTabs(props: BottomTabsProps) {
             onUpdateTestProfilePath={props.onUpdateTestProfilePath}
             profiles={props.profiles}
             onOpenLogs={props.onOpenLogs}
+            me={props.me}
+            onStartHandoff={props.onStartHandoff}
+            onAcceptHandoff={props.onAcceptHandoff}
+            isHandoffRunning={props.isHandoffRunning}
           />
         </div>
         <div