OAuth: normalize profile email

src/commands/auth-choice.apply.oauth.ts

@@ -68,10 +68,8 @@ export async function applyAuthChoiceOAuth(
       });
 
       spin.stop("Chutes OAuth complete");
-      const email =
-        (typeof creds.email === "string" ? creds.email.trim() : String(creds.email ?? "").trim()) ||
-        "default";
-      const profileId = `chutes:${email}`;
+      const email = typeof creds.email === "string" ? creds.email.trim() : "";
+      const profileId = `chutes:${email || "default"}`;
 
       await writeOAuthCredentials("chutes", creds, params.agentDir);
       nextConfig = applyAuthProfileConfig(nextConfig, {

src/commands/onboard-auth.credentials.ts

@@ -10,8 +10,9 @@ export async function writeOAuthCredentials(
   agentDir?: string,
 ): Promise<void> {
   // Write to resolved agent dir so gateway finds credentials on startup.
+  const email = typeof creds.email === "string" ? creds.email.trim() : "";
   upsertAuthProfile({
-    profileId: `${provider}:${creds.email ?? "default"}`,
+    profileId: `${provider}:${email || "default"}`,
     credential: {
       type: "oauth",
       provider,