fix: await whoami output in compat login --no-browser path

.changelog/await-compat-login-whoami-output.md

@@ -0,0 +1,5 @@
+---
+wallet-cli: patch
+---
+
+Await the whoami payload in the compatibility `login --no-browser` path so it prints wallet details instead of an empty object.

src/compat.ts

@@ -18,7 +18,7 @@ export async function handleCompatCommand(args: readonly string[]) {
     const activeAccount = state.accounts[state.activeAccount ?? 0];
     if (!activeAccount) return false;
     printCompatOutput(
-      currentWhoamiOutput({
+      await currentWhoamiOutput({
         walletAddress: activeAccount.address,
         chain: state.chainId ?? null,
         accessKeys: state.accessKeys,

test/compat.test.ts

@@ -0,0 +1,22 @@
+import { describe, expect, it, vi } from "vitest";
+
+import { handleCompatCommand } from "../src/compat.js";
+import { useTempHome, testWallet, walletState, writeWalletState } from "./helpers.js";
+
+describe("handleCompatCommand", () => {
+  it("prints the resolved whoami payload for login --no-browser", async () => {
+    await useTempHome();
+    await writeWalletState(walletState());
+
+    const log = vi.spyOn(console, "log").mockImplementation(() => undefined);
+    const handled = await handleCompatCommand(["login", "--no-browser", "--json-output"]);
+
+    expect(handled).toBe(true);
+    expect(log).toHaveBeenCalledTimes(1);
+
+    const printed = JSON.parse(String(log.mock.calls[0]?.[0])) as Record<string, unknown>;
+    expect(printed.wallet).toBe(testWallet.toLowerCase());
+    expect(printed).toHaveProperty("balance");
+    expect(printed).toHaveProperty("key");
+  });
+});