feat: 优化位置和可见性批量设置逻辑，仅在提供坐标或角度时更新，提升渲染效率和可读性

src/pages/movement-supervision.vue

@@ -148,19 +148,30 @@ const monitorScene = async () => {
       }
     });
 
-    // 批量设置位置和可见性，只渲染一次
-    const positionUpdates = updates.map(({ id, data }) => {
-      const { x, y, angle } = data;
-      if (isNil(x) || isNil(y)) {
-        return { id, visible: false };
-      } else {
-        const newX = x - 60;
-        const newY = y - 60;
-        // 后端 angle 为逆时针，把转换改为“先取反再加偏移”：
-        const rotate = angle == null ? undefined : -angle + 180;
-        return { id, x: newX, y: newY, rotate, visible: true, locked: LockState.None };
-      }
-    });
+    // 批量设置位置和可见性（仅在提供坐标时更新）
+    const positionUpdates = updates
+      .map(({ id, data }) => {
+        const { x, y, angle } = data;
+        // 仅当提供 x、y 或 angle 时才更新位置/角度，避免因缺省数据误将可见性设为 false
+        if (isNil(x) && isNil(y) && angle == null) {
+          return undefined;
+        }
+        const payload: any = { id };
+        if (!isNil(x) && !isNil(y)) {
+          const newX = x - 60;
+          const newY = y - 60;
+          payload.x = newX;
+          payload.y = newY;
+          payload.visible = true;
+          payload.locked = LockState.None;
+        }
+        if (angle != null) {
+          // 后端 angle 为逆时针，把转换改为“先取反再加偏移”
+          payload.rotate = -angle + 180;
+        }
+        return payload;
+      })
+      .filter((v) => v);
 
     // 使用Meta2D的批量更新方法，减少渲染调用
     positionUpdates.forEach((update) => {