做双端审批流

backend/components.d.ts

@@ -83,6 +83,7 @@ declare module 'vue' {
     ElTree: typeof import('element-plus/es')['ElTree']
     ElTreeSelect: typeof import('element-plus/es')['ElTreeSelect']
     ElUpload: typeof import('element-plus/es')['ElUpload']
+    FlowCanvas: typeof import('./src/components/approval/FlowCanvas.vue')['default']
     MessageDetailDialog: typeof import('./src/components/MessageDetailDialog.vue')['default']
     RouterLink: typeof import('vue-router')['RouterLink']
     RouterView: typeof import('vue-router')['RouterView']