feat: implement keyframe animation system

Add keyframe support for transform, opacity, and volume properties.
Includes animation engine (interpolation, mutations, resolvers), timeline
markers with selection/snapping, properties panel toggles, keyframe-aware
renderer, and full undo/redo command support.

Also refactor element command constructors to object params, extract
timeline pixel math to pixel-utils.ts, and update cursor rules.

1 files changed, 2 insertions, 1 deletions

diff --git a/apps/web/src/services/renderer/nodes/video-node.ts b/apps/web/src/services/renderer/nodes/video-node.ts
index 8e2ddccd..9ae63661 100644
--- a/apps/web/src/services/renderer/nodes/video-node.ts
+++ b/apps/web/src/services/renderer/nodes/video-node.ts
@@ -16,7 +16,7 @@ export class VideoNode extends VisualNode<VideoNodeParams> {
 			return;
 		}
 
-		const videoTime = this.getLocalTime(time);
+		const videoTime = this.getSourceLocalTime(time);
 		const frame = await videoCache.getFrameAt({
 			mediaId: this.params.mediaId,
 			file: this.params.file,
@@ -29,6 +29,7 @@ export class VideoNode extends VisualNode<VideoNodeParams> {
 				source: frame.canvas,
 				sourceWidth: frame.canvas.width,
 				sourceHeight: frame.canvas.height,
+				timelineTime: time,
 			});
 		}
 	}