feat(timeline): 支持拖拽调整时长与运镜/轨迹关键帧时间

src/editor/canvas/SceneRoot.tsx

@@ -30,7 +30,7 @@ import {
   VIEWPORT_CAMERA_VISUAL_SCALE,
 } from "../schema/cameraGeometry";
 import { VIEWPORT_OBJECT_LABEL_VERTICAL_GAP } from "../schema/viewportLabels";
-import { evaluateTrajectoryMotionAtTime, getTrajectoryPointTime } from "../schema/trajectoryMotion";
+import { evaluateTrajectoryMotionAtTime, getTrajectoryPointTimes } from "../schema/trajectoryMotion";
 import type { TransformMode } from "../store/directorStore";
 import { useDirectorStore } from "../store/directorStore";
 import { usePlaybackStore } from "../runtime/playbackStore";
@@ -920,7 +920,7 @@ function TrajectoryPath({
     if (pointIndex < 0) return;
 
     setPlaying(false);
-    setPlayhead(getTrajectoryPointTime(pointIndex, points.length, playbackDuration));
+    setPlayhead(getTrajectoryPointTimes(points, playbackDuration)[pointIndex] ?? 0);
   }
 
   /**