feat(editor): surface ref extension (#11902)

Closes: BS-3203

blocksuite/affine/ext-loader/src/view-provider.ts

@@ -81,6 +81,19 @@ export class ViewExtensionProvider<
    */
   effect(): void {}
 
+  /**
+   * Check if the scope is edgeless
+   * @param scope - The scope to check
+   * @returns True if the scope is edgeless, false otherwise
+   */
+  isEdgeless = (scope: ViewScope) => {
+    return (
+      scope === 'edgeless' ||
+      scope === 'preview-edgeless' ||
+      scope === 'mobile-edgeless'
+    );
+  };
+
   override setup(context: ViewExtensionContext, options?: Options) {
     super.setup(context, options);
     const constructer = this.constructor as typeof ViewExtensionProvider;