Summary

Adds a plant-themed GraphQL API Reference example project. The example demonstrates:

• A GraphQL schema (schema.graphql) with queries, mutations, subscriptions, enums, and input types
• generators.yml with a graphql spec entry (including name and origin)
• docs.yml with a custom layout that groups operations by section (Plants, Orders, Subscriptions)

The schema models a plant store with plants, orders, and order items — consistent with the plant-themed content used across other Fern examples.

Review & Testing Checklist for Human

• Verify the schema is valid by running fern check in the graphql/ directory
• Publish the example to graphql.docs.buildwithfern.com and verify the GraphQL API Reference renders correctly

Notes

This example is being added alongside fern-api/docs#5606 which unhides the GraphQL Reference documentation page. Once published, the live demo URL can be linked from the docs page.

Link to Devin session: https://app.devin.ai/sessions/6ec297a50749439ab276ea17ccd914d7
Requested by: @devalog