docs: Add Lazy schema example to useQuery

[ntucker]

Summary

• Adds a new "Lazy relationships" example to the useQuery() docs showing how to resolve deferred relationships using Lazy's .query accessor with useQuery
• Interactive HooksPlayground demo with Department/Building entities where buildings is a Lazy([Building]) field, resolved on demand in a child component

Test plan

• Verify the HooksPlayground renders correctly on the docs site (yarn start:vscode in website/)
• Confirm Lazy is in scope (requires packages to be built)

Made with Cursor

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Note

Low Risk
Documentation-only change that adds a new example; main risk is broken/incorrect sample code in the interactive HooksPlayground.

Overview
Adds a new “Lazy relationships” section to docs/core/api/useQuery.md demonstrating how to use Lazy schema fields via their .query accessor with useQuery.

Includes an interactive HooksPlayground example (Department/Building) that resolves related entities on demand in a child component to limit re-renders.

^{Written by Cursor Bugbot for commit 801481b. This will update automatically on new commits. Configure here.}

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
docs-site	Ignored		Apr 1, 2026 1:08am

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Latest commit: 801481b

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.08%. Comparing base (e22c634) to head (801481b).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

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  Files         152      152           
  Lines        2871     2871           
  Branches      563      563           
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  Hits         2816     2816           
  Misses         11       11           
  Partials       44       44           

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