Make query hooks data-first

[KidkArolis]

Summary

• make useQuery and useQueries return inferred data directly
• add useQueryResult and useQueryResults for metadata, pagination controls, and non-Suspense reads
• migrate the demo, tests, docs, and schema-bound hooks to the split API

Verification

• npm test: 359 tests passed
• npx tsc -p demo/tsconfig.json --noEmit

[cursor]

Approved. Cursor Bugbot completed successfully with no findings requiring human review; Cursor Security Agent was not running on this PR. No reviewers were assigned.

  

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