fix: patch auth flow (#180)

src/agent/client.ts

@@ -54,14 +54,6 @@ export async function getClient() {
     process.exit(1);
   }
 
-  // Auto-cache: if LETTA_API_KEY is set in env but not in settings, write it to settings
-  // Note: LETTA_BASE_URL is intentionally NOT cached - it should only come from env vars
-  if (process.env.LETTA_API_KEY && !settings.env?.LETTA_API_KEY) {
-    const updatedEnv = { ...settings.env };
-    updatedEnv.LETTA_API_KEY = process.env.LETTA_API_KEY;
-    settingsManager.updateSettings({ env: updatedEnv });
-  }
-
   return new Letta({
     apiKey,
     baseURL,