feat(ui): 将权限请求改为内联显示在聊天流中

- 添加 PermissionMessagePart 类型
- 创建 PermissionRequestInline 内联组件
- 修改 useChat 将权限请求作为 Part 处理
- 移除模态对话框，不再阻断 IDE 操作

packages/web/src/pages/Chat.tsx

@@ -11,7 +11,6 @@ import {
   ChatMessage,
   TypingIndicator,
   ChatInput,
-  PermissionDialog,
   ContextUsage,
   SubagentProgress,
   DiagnosticsIndicator,
@@ -78,7 +77,6 @@ export function ChatPage({
     streamingMessage,
     sendMessage,
     cancelProcessing,
-    permissionRequest,
     allowPermission,
     denyPermission,
     agentMode,
@@ -216,13 +214,27 @@ export function ChatPage({
 
           <AnimatePresence mode="popLayout">
             {messages.map((message) => (
-              <ChatMessage key={message.id} message={message} onAnswerQuestion={answerQuestion} onViewDiff={onViewDiff ?? onFileDiff} />
+              <ChatMessage
+                key={message.id}
+                message={message}
+                onAnswerQuestion={answerQuestion}
+                onViewDiff={onViewDiff ?? onFileDiff}
+                onAllowPermission={allowPermission}
+                onDenyPermission={denyPermission}
+              />
             ))}
           </AnimatePresence>
 
           {/* 流式消息 - 复用 ChatMessage 组件 */}
           {streamingMessage && (
-            <ChatMessage message={streamingMessage} isStreaming onAnswerQuestion={answerQuestion} onViewDiff={onViewDiff ?? onFileDiff} />
+            <ChatMessage
+              message={streamingMessage}
+              isStreaming
+              onAnswerQuestion={answerQuestion}
+              onViewDiff={onViewDiff ?? onFileDiff}
+              onAllowPermission={allowPermission}
+              onDenyPermission={denyPermission}
+            />
           )}
 
           {/* 子 Agent 进度显示 */}
@@ -252,15 +264,6 @@ export function ChatPage({
         onAutoAttachActiveFileToggle={onAutoAttachActiveFileToggle}
       />
 
-      {/* Permission Dialog */}
-      {permissionRequest && (
-        <PermissionDialog
-          request={permissionRequest}
-          onAllow={(requestId, remember) => allowPermission(requestId, remember)}
-          onDeny={(requestId, remember) => denyPermission(requestId, remember)}
-          responsive={responsive}
-        />
-      )}
     </div>
   );
 }