Document how to connect Giraffe to InfluxDB using InfluxQL

Currently there's no documentation on how to pull data from InfluxDB using InfluxQL and visualize it in Giraffe. It would be great to have an end-to-end tutorial on how to connect a React app to InfluxDB, run an InfluxQL query against it, and visualize it in Giraffe.

No file or test is named; start by locating the repository's documentation entry point and existing Giraffe connection examples. Document an end-to-end React-to-InfluxDB InfluxQL query and visualization flow, with a runnable example that demonstrates the completed tutorial.

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