✨ 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/App.tsx

@@ -2,6 +2,7 @@ import type { PastedImage } from './components/NewIssueModal'
 import type { Issue } from './types'
 import { useEffect, useMemo, useRef, useState } from 'react'
 import { BottomTabs } from './components/BottomTabs'
+import { HandoffModal } from './components/HandoffModal'
 import { KanbanBoard } from './components/KanbanBoard'
 import { LogModal } from './components/LogModal'
 import { NewIssueModal } from './components/NewIssueModal'
@@ -76,6 +77,12 @@ export function App() {
     envLockRunning,
     envLockTitle,
     toggleEnvLock,
+    me,
+    handoffUsers,
+    requestHandoffUsers,
+    startHandoff,
+    acceptHandoff,
+    isHandoffRunning,
   } = useIssues()
   const { profiles: profileData, saveProfiles, openProfileValue } = useProfiles()
   const {
@@ -92,6 +99,7 @@ export function App() {
   } = useManagedSessions()
   const [showNewIssueModal, setShowNewIssueModal] = useState(false)
   const [showLogs, setShowLogs] = useState(false)
+  const [handoffIssue, setHandoffIssue] = useState<number | null>(null)
   const [selectedId, setSelectedId] = useState<string | null>(null)
   // 程序化设置的选中（反向选中 / pendingSelectId）记在这里，让下面的自动聚焦
   // effect 跳过它——否则 选中→聚焦→终端激活→反向选中 会死循环、CPU 飙升。
@@ -374,6 +382,13 @@ export function App() {
                 onUpdateBrainstormProfilePath={updateIssueBrainstormProfilePath}
                 onUpdateTestProfilePath={updateIssueTestProfilePath}
                 onOpenLogs={() => setShowLogs(true)}
+                me={me}
+                onStartHandoff={(n) => {
+                  setHandoffIssue(n)
+                  requestHandoffUsers(n)
+                }}
+                onAcceptHandoff={acceptHandoff}
+                isHandoffRunning={isHandoffRunning}
                 profileData={profileData}
                 onProfileSave={saveProfiles}
                 onProfileOpen={openProfileValue}
@@ -448,6 +463,16 @@ export function App() {
         onSubmit={handleSubmitNewIssue}
         profiles={profiles}
       />
+      <HandoffModal
+        open={handoffIssue !== null}
+        issueNumber={handoffIssue}
+        users={handoffUsers && handoffUsers.issueNumber === handoffIssue ? handoffUsers.users : null}
+        onCancel={() => setHandoffIssue(null)}
+        onSubmit={(n, to) => {
+          startHandoff(n, to)
+          setHandoffIssue(null)
+        }}
+      />
       <LogModal
         open={showLogs}
         entries={logs}