Give undo and the card picker's buttons a fingertip to land on

The first thing the repaired audit found, run on a real touch context at 44px: three
controls a dealer taps on a phone that are too small to tap.

    .actionUndo             145x30   the "I recorded that wrong" pill
    #cardPickerClearBtn      50x40   wipes a player's cards
    #cardPickerCloseBtn      50x40   closes the picker

Undo is the worst of them. It is the control a dealer reaches for having just entered
the wrong action with five people waiting, and it was fourteen pixels short of a
fingertip. The picker's two are short because the touch rule that fixes every other
small button is scoped to .panelBody, and the picker is a sheet — it never reached
them. One of them is destructive.

All three now sit at 44px on touch. Nothing changes on a pointer device.

I tried an invisible hit-area pad on undo first, to avoid spending bar height, and the
measurement said it did nothing: the pill clips its overflow to keep a long label on
one line, and giving it a positioning context made it clip the pad too. Growing the
box is the honest fix, and it turned out to cost nothing anyway — the bar goes from
138px to 152px and the felt stays at 366px, because the felt had slack against its
220px floor rather than sitting on it as I had assumed.

Co-Authored-By: Claude Opus 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_015bnp7xKUPFFSpwkYNFaPgb

JoshHeaps.Net/wwwroot/css/casino/holdem.css

@@ -3138,7 +3138,18 @@ body.hasActionBar #toastHost {
     }
 
     .panelBody .holdemBtnSmall,
-    .handHistoryActions .holdemBtn {
+    .handHistoryActions .holdemBtn,
+    /* The card picker's Clear and Done sat at 40px: the touch rule was scoped to
+       .panelBody and the picker is a sheet, so it never reached them. Clear wipes a
+       player's cards, which is not a thing to make a dealer aim at. */
+    .cardPickerHeader .holdemBtn,
+    /* Undo was 30px, and it is the control a dealer reaches for having just recorded
+       the wrong thing with five people waiting — the worst place to be fourteen pixels
+       short of a fingertip. Growing the box costs bar height, which comes out of the
+       felt, but measured at 390x844 the felt is 366px against a 220px floor, so there
+       is room for it. A hit-area pad was tried first and does not work here: the pill
+       clips its overflow to keep a long label on one line, which clips the pad too. */
+    .actionUndo {
         min-height: 44px;
     }
 
@@ -3525,7 +3536,9 @@ textarea:focus-visible {
 
     .panelBody .holdemBtnSmall,
     .handHistoryActions .holdemBtn,
-    .toastAction {
+    .toastAction,
+    .cardPickerHeader .holdemBtn,
+    .actionUndo {
         min-height: 44px;
     }