refactor(test): centralize auth test agent-dir helpers

src/commands/auth-choice.moonshot.e2e.test.ts

@@ -7,17 +7,10 @@ import {
   createExitThrowingRuntime,
   createWizardPrompter,
   readAuthProfilesForAgent,
+  requireOpenClawAgentDir,
   setupAuthTestEnv,
 } from "./test-wizard-helpers.js";
 
-const requireAgentDir = () => {
-  const agentDir = process.env.OPENCLAW_AGENT_DIR;
-  if (!agentDir) {
-    throw new Error("OPENCLAW_AGENT_DIR not set");
-  }
-  return agentDir;
-};
-
 function createPrompter(overrides: Partial<WizardPrompter>): WizardPrompter {
   return createWizardPrompter(overrides, { defaultSelect: "" });
 }
@@ -40,7 +33,7 @@ describe("applyAuthChoice (moonshot)", () => {
   async function readAuthProfiles() {
     return await readAuthProfilesForAgent<{
       profiles?: Record<string, { key?: string }>;
-    }>(requireAgentDir());
+    }>(requireOpenClawAgentDir());
   }
 
   afterEach(async () => {