Add synced state introspection APIs for conflict detection#1245

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KyleAMathews wants to merge 3 commits intomainfrom

claude/paced-mutations-server-updates-IKyA0

Commits on Feb 12, 2026

feat: add collection.rollbackOptimisticUpdates() for server-side update conflicts
claude
committed
feat: add getSyncedValue/getSyncedMetadata for conflict detection in paced mutations
claude
committed
Merge remote-tracking branch 'origin/main' into claude/paced-mutations-server-updates-IKyA0
claude
committed