fix: canvas api error (#338)

packages/canvas/src/components/container/CanvasContainer.vue

@@ -119,7 +119,7 @@ export default {
         iframeMonitoring()
 
         initCanvas({ emit, renderer: detail, iframe: iframe.value, controller: props.controller })
-        useCanvas().renderer.value = window.api
+        useCanvas().renderer.value = { ...detail, ...window.canvasApi }
 
         const doc = iframe.value.contentDocument
         const win = iframe.value.contentWindow

packages/canvas/src/components/render/RenderMain.js

@@ -424,15 +424,19 @@ export const api = {
   getGlobalState,
   getDataSourceMap,
   setDataSourceMap,
-  setGlobalState,
-  getCurrent, 
+  setGlobalState
+}
+
+const canvasApi = {
+  getCurrent,
   setLocales,
   getNodeById: getNode,
   updateRect,
-  addStyle, 
-  addScript, 
+  addStyle,
+  addScript,
   canvasDispatch
 }
 
 window.api = api
-window.Builtin = Builtin
+window.canvasApi = canvasApi
+window.Builtin = Builtin