Fix header scroll sync lag in horizontal virtual rendering#6

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rathboma wants to merge 3 commits into

claude/fix-table-header-scroll-6BQaR

Commits on Apr 28, 2026

test: failing repro for horizontal vdom header scroll desync
claude
committed
fix: sync header scrollLeft when addColLeft bumps body scroll on fitData width recalc
claude
committed
fix: drive header horizontal position from body scroll via transform
claude
committed