refactor(web): split touch canvas adapters

apps/web/src/hooks/timelineTouch.ts

@@ -9,15 +9,6 @@ export type TouchDecisionState = {
   decided: boolean;
 };
 
-export type TouchMouseDownEvent = {
-  button: number;
-  clientX: number;
-  currentTarget?: EventTarget | null;
-  shiftKey: boolean;
-  preventDefault: () => void;
-  stopPropagation: () => void;
-};
-
 type TouchLike = {
   clientX: number;
   clientY: number;
@@ -36,20 +27,6 @@ export function getTouchPoint(event: TouchEventLike): TouchPoint {
   };
 }
 
-export function createTouchMouseDownEvent(
-  point: TouchPoint,
-  currentTarget?: EventTarget | null,
-): TouchMouseDownEvent {
-  return {
-    button: 0,
-    clientX: point.clientX,
-    currentTarget: currentTarget ?? null,
-    shiftKey: false,
-    preventDefault: () => {},
-    stopPropagation: () => {},
-  };
-}
-
 export function resolveTouchDragDecision(
   state: TouchDecisionState,
   point: TouchPoint,