- The portalled tag picker now FOLLOWS its trigger on scroll (rAF-coalesced)
instead of closing. Closing on every wheel tick was a regression for the table,
where the menu used to travel with its row; it still closes once the trigger
leaves the viewport (nothing left to anchor to) or on resize.
- Place the menu by MEASUREMENT, not a px estimate: it opens below, then the
layout effect flips it above only if the real box overflows. The old
`rows * 30px` guess read short at font-scale 1.3 (the rows are rem), which
could leave a fixed menu hanging off the bottom with no way to reach it.
- `toggle` only opens once a position exists, so the `open && coords` gate can
never show a stale anchor.
- One owner for "is there anything to page": `hasPagerContent()` lives in Pager
and DataTable calls it, instead of both re-deriving the rule — that drift is
what left empty control bands behind in the first place.
- Reset the card page on the row COUNT too, not just the filter inputs, so an
unsubscribe or a shrinking refetch can't leave a stale page to spring back.
- `parseCardSize` clamps to the sizes the pager actually offers (like clampView /
clampStatus), so the select can't display one value while the grid pages by another.
- VirtualGrid's docblock now carries the stacking-context constraint: its rows are
transformed, so anything floating an item renders must portal out.
peter
c630d29ff6