This section instructs starting InfluxDB 3 before `yarn test`, but `__tests__/api.test.js` mocks `../lib/influxdb` and doesn’t require a live database. Update guidance to reflect that unit tests run without InfluxDB, and optionally document a separate integration test workflow if needed.

This section instructs starting InfluxDB 3 before `yarn test`, but `__tests__/api.test.js` mocks `../lib/influxdb` and doesn’t require a live database. Update guidance to reflect that unit tests run without InfluxDB, and optionally document a separate integration test workflow if needed.

_Originally posted by @Copilot in https://github.com/influxdata/iot-api-js/pull/29#discussion_r2789216087_

Locate the documentation section that precedes `yarn test`, then read `__tests__/api.test.js` to confirm the InfluxDB mock. Update the guidance so unit tests do not require a live InfluxDB instance; if an integration workflow is documented, keep it separate and clearly identify its requirements.

Written by the indexing model from the issue text.