completly remove sandbox related code as the downstream libraries do not work with it on various os

apps/ui/src/lib/http-api-client.ts

@@ -379,32 +379,6 @@ export const verifySession = async (): Promise<boolean> => {
   }
 };
 
-/**
- * Check if the server is running in a containerized (sandbox) environment.
- * This endpoint is unauthenticated so it can be checked before login.
- */
-export const checkSandboxEnvironment = async (): Promise<{
-  isContainerized: boolean;
-  error?: string;
-}> => {
-  try {
-    const response = await fetch(`${getServerUrl()}/api/health/environment`, {
-      method: 'GET',
-    });
-
-    if (!response.ok) {
-      logger.warn('Failed to check sandbox environment');
-      return { isContainerized: false, error: 'Failed to check environment' };
-    }
-
-    const data = await response.json();
-    return { isContainerized: data.isContainerized ?? false };
-  } catch (error) {
-    logger.error('Sandbox environment check failed:', error);
-    return { isContainerized: false, error: 'Network error' };
-  }
-};
-
 type EventType =
   | 'agent:stream'
   | 'auto-mode:event'