- The tag menu's "trigger is gone" test now measures against the SCROLLER, not the
window. The page scroller starts ~230px down (measured), so a row that slid under
the fixed toolbar was still "on screen" by window coords and the menu floated over
the chrome, anchored to something invisible.
- Scroll-repositioning keeps whichever side the menu is anchored to instead of
resetting it to "below" every frame — that reset made the layout effect flip it
back, costing two renders and two forced layouts per frame near the bottom edge.
- One placement rule (`coordsFrom`) now serves the initial open, the layout
correction and every reposition, so those can no longer drift apart.
- Card page: reset on the filter/sort INPUTS only, and separately COMMIT the clamp
when the page falls out of range. Keying the reset on the row count (round 2) was
too blunt — a background refetch that merely added a channel threw the reader off
page 7 for something they didn't do.
- Pager derives `pageCount()` once and `hasPagerContent` reuses it, instead of the
same expression twice in one file.
- Re-indent the pagerNode JSX left dangling by round 2's ternary edit.
peter
ab5f3c9fbb