fix(litellm): handle AUTH_CHOICE_CANCELLED to retry auth selection

- Add retry loops in configure.gateway-auth and agents.commands.add
- Catch AUTH_CHOICE_CANCELLED error and re-prompt for auth method
- Users can now go back to auth method selection when LiteLLM setup fails
- Import AuthChoice type for proper typing

Co-Authored-By: Claude <noreply@anthropic.com>

src/commands/agents.commands.add.ts

@@ -254,12 +254,16 @@ export async function agentsAddCommand(
       const authStore = ensureAuthProfileStore(agentDir, {
         allowKeychainPrompt: false,
       });
+
+      // Loop to allow retrying auth choice if user cancels during configuration
+      while (true) {
         const authChoice = await promptAuthChoiceGrouped({
           prompter,
           store: authStore,
           includeSkip: true,
         });
 
+        try {
           const authResult = await applyAuthChoice({
             authChoice,
             config: nextConfig,
@@ -276,6 +280,16 @@ export async function agentsAddCommand(
               model: authResult.agentModelOverride,
             });
           }
+          break; // Success - exit the loop
+        } catch (error) {
+          // If user cancelled to go back to auth selection, loop again
+          if (error instanceof Error && error.message === "AUTH_CHOICE_CANCELLED") {
+            continue;
+          }
+          // Re-throw other errors
+          throw error;
+        }
+      }
     }
 
     await warnIfModelConfigLooksOff(nextConfig, prompter, {

src/commands/configure.gateway-auth.ts

@@ -4,6 +4,7 @@ import type { RuntimeEnv } from "../runtime.js";
 import type { WizardPrompter } from "../wizard/prompts.js";
 import { applyAuthChoice, resolvePreferredProviderForAuthChoice } from "./auth-choice.js";
 import { promptAuthChoiceGrouped } from "./auth-choice-prompt.js";
+import type { AuthChoice } from "./onboard-types.js";
 import {
   applyModelAllowlist,
   applyModelFallbacksFromSelection,
@@ -41,7 +42,12 @@ export async function promptAuthConfig(
   runtime: RuntimeEnv,
   prompter: WizardPrompter,
 ): Promise<MoltbotConfig> {
-  const authChoice = await promptAuthChoiceGrouped({
+  let next = cfg;
+  let authChoice: AuthChoice;
+
+  // Loop to allow retrying auth choice if user cancels during configuration
+  while (true) {
+    authChoice = await promptAuthChoiceGrouped({
       prompter,
       store: ensureAuthProfileStore(undefined, {
         allowKeychainPrompt: false,
@@ -49,8 +55,8 @@ export async function promptAuthConfig(
       includeSkip: true,
     });
 
-  let next = cfg;
     if (authChoice !== "skip") {
+      try {
         const applied = await applyAuthChoice({
           authChoice,
           config: next,
@@ -59,6 +65,15 @@ export async function promptAuthConfig(
           setDefaultModel: true,
         });
         next = applied.config;
+        break; // Success - exit the loop
+      } catch (error) {
+        // If user cancelled to go back to auth selection, loop again
+        if (error instanceof Error && error.message === "AUTH_CHOICE_CANCELLED") {
+          continue;
+        }
+        // Re-throw other errors
+        throw error;
+      }
     } else {
       const modelSelection = await promptDefaultModel({
         config: next,
@@ -70,6 +85,8 @@ export async function promptAuthConfig(
       if (modelSelection.model) {
         next = applyPrimaryModel(next, modelSelection.model);
       }
+      break; // Skip selected - exit the loop
+    }
   }
 
   const anthropicOAuth =