feat(studio): add keyframe timeline state

packages/studio/src/telemetry/events.test.ts

@@ -12,6 +12,7 @@ const {
   trackStudioRenderStart,
   trackStudioRazorSplit,
   trackStudioExpandedClipEdit,
+  trackStudioKeyframeLaneExpand,
   trackStudioSegmentEaseEdit,
   trackStudioFeedback,
 } = await import("./events");
@@ -72,8 +73,13 @@ describe("studio telemetry events", () => {
     expect(trackEvent).toHaveBeenCalledWith("studio_expanded_clip_edit", { action: "resize" });
   });
 
+  it("trackStudioKeyframeLaneExpand emits 'studio_keyframe_lane_expand' with expanded", () => {
+    trackStudioKeyframeLaneExpand({ expanded: true });
+    expect(trackEvent).toHaveBeenCalledWith("studio_keyframe_lane_expand", { expanded: true });
+  });
+
   it("trackStudioSegmentEaseEdit emits 'studio_segment_ease_edit' with action and ease", () => {
-    trackStudioSegmentEaseEdit({ ease: "power2.out" });
+    trackStudioSegmentEaseEdit({ action: "commit", ease: "power2.out" });
     expect(trackEvent).toHaveBeenCalledWith("studio_segment_ease_edit", {
       action: "commit",
       ease: "power2.out",

packages/studio/src/telemetry/events.ts

@@ -63,9 +63,17 @@ export function trackStudioExpandedClipEdit(props: {
   trackEvent("studio_expanded_clip_edit", { action: props.action });
 }
 
-// Adoption signal for committing an edit to a segment's ease.
-export function trackStudioSegmentEaseEdit(props: { ease: string }): void {
-  trackEvent("studio_segment_ease_edit", { action: "commit", ease: props.ease });
+// Adoption signal for the per-clip keyframe-lane caret toggle.
+export function trackStudioKeyframeLaneExpand(props: { expanded: boolean }): void {
+  trackEvent("studio_keyframe_lane_expand", { expanded: props.expanded });
+}
+
+// Adoption signal for opening and committing the per-segment ease editor.
+export function trackStudioSegmentEaseEdit(props: {
+  action: "open" | "commit";
+  ease?: string;
+}): void {
+  trackEvent("studio_segment_ease_edit", { action: props.action, ease: props.ease });
 }
 
 export function trackStudioFeedback(props: { rating: number; comment?: string }): void {