refactor: share cli runtime error handling

src/cli/cli-utils.ts

@@ -29,3 +29,20 @@ export async function withManager<T>(params: {
     }
   }
 }
+
+export async function runCommandWithRuntime(
+  runtime: { error: (message: string) => void; exit: (code: number) => void },
+  action: () => Promise<void>,
+  onError?: (error: unknown) => void,
+): Promise<void> {
+  try {
+    await action();
+  } catch (err) {
+    if (onError) {
+      onError(err);
+      return;
+    }
+    runtime.error(String(err));
+    runtime.exit(1);
+  }
+}