ludic.ui, ludic.i18n: frame_keeps and birth_leaks to 0 - :nth-child's a and b read once per argument, a border-image's miss its own function; typing, the dev dump, parsing, the pointer ring's making, Ln's counted line and the plural header declared

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/ludic.ui/controls_parts.ludic

@@ -31,6 +31,7 @@ function ct_value_text(n: UiNode) -> string {
   return s + ui_attr_text(n, "unit")
 }
 # a number with `places` digits after the point, rounded
+@alloc_ok("a memo miss (ct_value_shown): once per value a range shows")
 function ct_fixed(f: float, places: int) -> string {
   var k = 1
   for i in 0 .. Math.max(places, 0) { k = k * 10 }