#1388 5871779 Thanks @petyosi! - Fix useSyncExternalStore detection for React 19+

The version check used startsWith('18') which excluded React 19, causing it to fall back to the legacy useState+useLayoutEffect subscription path. This could cause tearing issues in concurrent rendering scenarios. Changed to parseInt(React.version) >= 18 to correctly use useSyncExternalStore for React 18 and above.

• @virtuoso.dev/[email protected]

#1369 5b57a93 Thanks @petyosi! - Reduce per-publish CPU cost and fix memory leaks in the reactive engine

• Cache combineCells() by source set to prevent orphaned graph nodes on repeated calls
• Clean up subMultiple() synthetic nodes on unsubscribe
• Fast-path pub() to skip object allocation for single-node publishes
• Replace full state map clone with dirty-state overlay in pubIn
• Pre-compute source+pull node arrays on projections to avoid per-node array allocations
• Merge double Object.getOwnPropertySymbols iteration in pubIn into a single loop
• Replace indexOf/splice with skip-set in nodeWillNotEmit propagation
• Lift inContext to wrap entire pubIn propagation loop
• Skip empty RealmProvider publishes when no updateWith is provided
• Memoize getSnapshot in useCellValueWithStore for stable useSyncExternalStore identity

161db63 Thanks @petyosi! - Use changeset publish for proper git tagging and GitHub release creation

Updated dependencies [161db63]:

• @virtuoso.dev/[email protected]