feat: enhance Codex authentication and API key management

- Introduced a new method to check Codex authentication status, allowing for better handling of API keys and OAuth tokens.
- Updated API key management to include OpenAI, enabling users to manage their keys more effectively.
- Enhanced the CodexProvider to support session ID tracking and deduplication of text blocks in assistant messages.
- Improved error handling and logging in authentication routes, providing clearer feedback to users.

These changes improve the overall user experience and security of the Codex integration, ensuring smoother authentication processes and better management of API keys.

apps/ui/src/components/views/settings-view/api-keys/api-keys-section.tsx

@@ -14,8 +14,15 @@ import { useNavigate } from '@tanstack/react-router';
 
 export function ApiKeysSection() {
   const { apiKeys, setApiKeys } = useAppStore();
-  const { claudeAuthStatus, setClaudeAuthStatus, setSetupComplete } = useSetupStore();
+  const {
+    claudeAuthStatus,
+    setClaudeAuthStatus,
+    codexAuthStatus,
+    setCodexAuthStatus,
+    setSetupComplete,
+  } = useSetupStore();
   const [isDeletingAnthropicKey, setIsDeletingAnthropicKey] = useState(false);
+  const [isDeletingOpenaiKey, setIsDeletingOpenaiKey] = useState(false);
   const navigate = useNavigate();
 
   const { providerConfigParams, handleSave, saved } = useApiKeyManagement();
@@ -51,6 +58,34 @@ export function ApiKeysSection() {
     }
   }, [apiKeys, setApiKeys, claudeAuthStatus, setClaudeAuthStatus]);
 
+  // Delete OpenAI API key
+  const deleteOpenaiKey = useCallback(async () => {
+    setIsDeletingOpenaiKey(true);
+    try {
+      const api = getElectronAPI();
+      if (!api.setup?.deleteApiKey) {
+        toast.error('Delete API not available');
+        return;
+      }
+
+      const result = await api.setup.deleteApiKey('openai');
+      if (result.success) {
+        setApiKeys({ ...apiKeys, openai: '' });
+        setCodexAuthStatus({
+          authenticated: false,
+          method: 'none',
+        });
+        toast.success('OpenAI API key deleted');
+      } else {
+        toast.error(result.error || 'Failed to delete API key');
+      }
+    } catch (error) {
+      toast.error('Failed to delete API key');
+    } finally {
+      setIsDeletingOpenaiKey(false);
+    }
+  }, [apiKeys, setApiKeys, setCodexAuthStatus]);
+
   // Open setup wizard
   const openSetupWizard = useCallback(() => {
     setSetupComplete(false);
@@ -137,6 +172,23 @@ export function ApiKeysSection() {
               Delete Anthropic Key
             </Button>
           )}
+
+          {apiKeys.openai && (
+            <Button
+              onClick={deleteOpenaiKey}
+              disabled={isDeletingOpenaiKey}
+              variant="outline"
+              className="h-10 border-red-500/30 text-red-500 hover:bg-red-500/10 hover:border-red-500/50"
+              data-testid="delete-openai-key"
+            >
+              {isDeletingOpenaiKey ? (
+                <Loader2 className="w-4 h-4 mr-2 animate-spin" />
+              ) : (
+                <Trash2 className="w-4 h-4 mr-2" />
+              )}
+              Delete OpenAI Key
+            </Button>
+          )}
         </div>
       </div>
     </div>