fix: 优化Gizmo

src/editor/canvas/ViewportToolbar.test.tsx

@@ -5,7 +5,7 @@ import { clearViewportCaptureHandler, setViewportCaptureHandler } from "../io/ca
 import { BODY_TYPE_OPTIONS } from "../runtime/mannequin/bodyTypes";
 import { createInitialDirectorState, useDirectorStore } from "../store/directorStore";
 import { usePlaybackStore } from "../runtime/playbackStore";
-import { getCameraRigPositionFromViewSnapshot, getCameraViewSnapshotFromShot } from "../schema/cameraGeometry";
+import { getCameraLookRotationFromTarget, getCameraRigPositionFromViewSnapshot, getCameraViewSnapshotFromShot } from "../schema/cameraGeometry";
 import { ViewportToolbar } from "./ViewportToolbar";
 import { getModelLibraryItems } from "../modelLibrary/modelLibraryCatalog";
 
@@ -349,7 +349,8 @@ it("keeps add role and add camera actions available from the viewport capsule",
   expect(state.project.cameras[1].fov).toBe(64);
   expect(state.project.cameras[1].transform.position).toEqual(getCameraRigPositionFromViewSnapshot(snapshot));
   expect(getCameraViewSnapshotFromShot(state.project.cameras[1]).position).toEqual(snapshot.position);
-  expect(state.project.cameras[1].target).toEqual([0, 1, -2]);
+  // 从视口新建的机位：把「视口位置 → 视口注视点」换算成注视朝向角
+  expect(state.project.cameras[1].lookRotation).toEqual(getCameraLookRotationFromTarget(snapshot.position, snapshot.target));
 });
 
 it("does not show operation feedback text on the right side of the viewport capsule", async () => {