Troubleshooting

Symptom	Check
`apiBaseEnvConfig` is required	Pass config into `createSumxHttpClient`
`defaultApiBase` is not defined	Key must exist in `apiBaseEnvConfig`
`[http-client] Missing base URL for "…"`	Env empty; check `.env` and `getEnvValue`
401 loop	BFF cookies; `x-skip-auth-redirect` on auth probes
Wrong upstream	`apiBase` argument or `x-api-base` header
Type error on `defaultApiBase` in config	Rebuild `@sumx/http-client` and `pnpm install`; optional fields are in `SumxHttpClientConfig`