fix: 标注成功后自动生成标签，无需点击确认按钮

components/canvas/nodes/ImageNode.tsx

@@ -160,15 +160,12 @@ export function ImageNode({ node, isSelected }: ImageNodeProps) {
   // 当前节点是否处于拾取模式
   const isThisNodePicking = isPickerMode && pickerTargetNodeId === node.id;
   
-  // 已标注的物品列表（本地状态）
-  const [pickedMarkers, setPickedMarkers] = useState<PickedMarker[]>([]);
   // 当前正在识别的点击位置
   const [currentClick, setCurrentClick] = useState<{ x: number; y: number } | null>(null);
   
-  // 退出拾取模式时清空标记
+  // 退出拾取模式时清空状态
   useEffect(() => {
     if (!isThisNodePicking) {
-      setPickedMarkers([]);
       setCurrentClick(null);
     }
   }, [isThisNodePicking]);
@@ -222,15 +219,10 @@ export function ImageNode({ node, isSelected }: ImageNodeProps) {
         
         addPendingPickedObject(picked);
         
-        setPickedMarkers(prev => [...prev, {
-          clickX,
-          clickY,
-          objectName: result.object.name,
-          index: prev.length + 1,
-        }]);
-        
-        toast.success(`已添加: ${result.object.name}`);
+        // 标注成功后自动关闭拾取模式，直接生成标签
+        setPickerMode(false);
         setCurrentClick(null);
+        toast.success(`已添加: ${result.object.name}`);
       } else {
         toast.error(result.error || '未能识别物品');
         setCurrentClick(null);
@@ -242,15 +234,7 @@ export function ImageNode({ node, isSelected }: ImageNodeProps) {
     } finally {
       setPickerLoading(false);
     }
-  }, [isThisNodePicking, isPickerLoading, data.src, node.id, setPickerLoading, addPendingPickedObject]);
-  
-  // 🆕 完成标注
-  const handleFinishPicking = useCallback(() => {
-    setPickerMode(false);
-    if (pickedMarkers.length > 0) {
-      toast.success(`已完成 ${pickedMarkers.length} 个物品标注`);
-    }
-  }, [setPickerMode, pickedMarkers.length]);
+  }, [isThisNodePicking, isPickerLoading, data.src, node.id, setPickerLoading, addPendingPickedObject, setPickerMode]);
   
   // 🆕 取消标注
   const handleCancelPicking = useCallback(() => {
@@ -637,31 +621,6 @@ export function ImageNode({ node, isSelected }: ImageNodeProps) {
               }}
             />
             
-            {/* 🆕 拾取模式：显示已标注的物品标记 */}
-            {isThisNodePicking && pickedMarkers.map((marker) => (
-              <div
-                key={`marker-${marker.index}`}
-                className="absolute pointer-events-none"
-                style={{
-                  left: `${marker.clickX * 100}%`,
-                  top: `${marker.clickY * 100}%`,
-                  transform: 'translate(-50%, -50%)',
-                }}
-              >
-                {/* 序号标记 */}
-                <div className="relative flex items-center justify-center">
-                  <div className="absolute w-8 h-8 rounded-full bg-blue-500/30 animate-ping" />
-                  <div className="w-6 h-6 rounded-full bg-blue-500 text-white text-xs font-bold flex items-center justify-center shadow-lg border-2 border-white">
-                    {marker.index}
-                  </div>
-                </div>
-                {/* 物品名称 */}
-                <div className="absolute top-full left-1/2 -translate-x-1/2 mt-1 bg-blue-500 text-white text-xs px-2 py-0.5 rounded shadow-lg whitespace-nowrap">
-                  {marker.objectName}
-                </div>
-              </div>
-            ))}
-            
             {/* 🆕 拾取模式：当前点击位置（正在识别） */}
             {isThisNodePicking && currentClick && (
               <div
@@ -681,29 +640,12 @@ export function ImageNode({ node, isSelected }: ImageNodeProps) {
               <div className="absolute bottom-2 left-1/2 -translate-x-1/2 flex items-center gap-2 bg-white rounded-full px-3 py-1.5 shadow-lg">
                 <Crosshair className="h-4 w-4 text-orange-500" />
                 <span className="text-xs font-medium">
-                  {isPickerLoading 
-                    ? '正在识别...' 
-                    : pickedMarkers.length > 0 
-                      ? `已标注 ${pickedMarkers.length} 个` 
-                      : '点击标注物品'}
+                  {isPickerLoading ? '正在识别...' : '点击标注物品'}
                 </span>
-                {pickedMarkers.length > 0 && (
-                  <Button
-                    size="sm"
-                    className="h-6 rounded-full bg-black hover:bg-black/90 text-white px-3 text-xs"
-                    onClick={(e) => {
-                      e.stopPropagation();
-                      handleFinishPicking();
-                    }}
-                  >
-                    <Check className="h-3 w-3 mr-1" />
-                    完成
-                  </Button>
-                )}
                 <Button
                   variant="ghost"
                   size="icon"
-                  className="h-6 w-6 rounded-full"
+                  className="h-6 w-6 rounded-full hover:bg-gray-100"
                   onClick={(e) => {
                     e.stopPropagation();
                     handleCancelPicking();