refactor(table-core): remove SyntheticEvent persist() calls

[conao3]

🎯 Changes

Removes the (e as any).persist?.() calls from the sorting, expanding, resizing, and selection event handlers, plus the JSDoc / generated reference docs that described them.

persist() was a workaround for React's SyntheticEvent pooling, which was removed in React 17 (the method has been a deprecated no-op since then). v9 requires react >= 18, so these calls can't do anything anymore. Dropping them also removes 4 as any casts from table-core.

References:

• React v17 RC announcement, "No Event Pooling": "Note that e.persist() is still available on the React event object, but now it doesn't do anything."
• React event object in the react.dev reference: "persist(): Not used with React DOM."

✅ Checklist

• I have followed the steps in the Contributing guide.
• I have tested this code locally with pnpm test:pr.

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Assisted-by: Claude Code:claude-fable-5

[coderabbitai]

📝 Walkthrough

Walkthrough

Handlers for row selection, row expansion, sorting, and column resizing no longer call optional event.persist() methods. Documentation and tests were updated to remove persistence-specific statements and assertions.

Changes

Synthetic event persistence removal

Layer / File(s)	Summary
Row selection event handling packages/table-core/src/features/row-selection/rowSelectionFeature.utils.ts, packages/table-core/tests/implementation/features/row-selection/rowSelectionRange.test.ts, docs/reference/static-functions/functions/row_getToggleSelectedHandler.md	Row selection reads target.checked without persisting the event, and the persistence-specific test and documentation are removed.
Expansion and sorting toggle handlers packages/table-core/src/features/row-expanding/rowExpandingFeature.utils.ts, packages/table-core/src/features/row-sorting/rowSortingFeature.utils.ts, packages/table-core/tests/unit/features/row-expanding/*, packages/table-core/tests/unit/features/row-sorting/*, docs/reference/static-functions/functions/table_getToggleAllRowsExpandedHandler.md, docs/reference/static-functions/functions/column_getToggleSortingHandler.md	Expansion and sorting handlers no longer persist events; tests now assert state updates without persistence checks.
Column resize event handling packages/table-core/src/features/column-resizing/columnResizingFeature.utils.ts	The resize-start handler no longer invokes optional event persistence.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• TanStack/table#6409: Related row-selection toggle-handler and event-plumbing changes.

Suggested reviewers: kevinvandy

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: removing SyntheticEvent persist() calls from table-core.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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