fix:解决拖拽问题

src/contexts/ScaleContext.tsx

@@ -0,0 +1,31 @@
+import { createContext, useContext, ReactNode } from "react";
+
+export interface ScaleContextValue {
+  scale: number;
+  offsetX: number;
+  offsetY: number;
+  DESIGN_WIDTH: number;
+  DESIGN_HEIGHT: number;
+}
+
+const ScaleContext = createContext<ScaleContextValue | null>(null);
+
+export function ScaleProvider({
+  children,
+  value,
+}: {
+  children: ReactNode;
+  value: ScaleContextValue;
+}) {
+  return (
+    <ScaleContext.Provider value={value}>{children}</ScaleContext.Provider>
+  );
+}
+
+export function useScale() {
+  const context = useContext(ScaleContext);
+  if (!context) {
+    throw new Error("useScale must be used within ScaleProvider");
+  }
+  return context;
+}