ludic.ui: an unmounted component is mounted again rather than made again - its record renewed (a generated renew), its props and model kept; an action's call answers into a ring

A prompt that comes and goes as a player walks (co-op's netleak: in_get, cmp_*_new, bd_class, value_slot/put)
made a new record, props and model on every mount, and an action's call answered into a new Val (ev_call_with).
examples/library/ui_remount: two thousand comings and goings hold the heap at 0, and the counter starts at 0.

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

examples/library/ui_remount_parts/Counter.ludic

@@ -0,0 +1,9 @@
+# Counter.ludic - a counter that starts at 0 each time it is mounted
+component Counter {
+  prop label: string
+  prop step: int = 1
+  state count: int = 0
+  doubled: int = count * 2
+  function big() -> bool { return count > 3 }
+  on bump() { count += step }
+}

examples/library/ui_remount_parts/Counter.xml

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+<div class="counter">
+  <p>{label}: {count} ({doubled}){big() ? ' big' : ''}</p>
+  <button on-click="bump()">+</button>
+  <button on-click="set count = 0">reset</button>
+</div>

examples/library/ui_remount_parts/Shown.ludic

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+# Shown.ludic - a counter shown or not: each time it comes back it is a new counter
+component Shown {
+  state on: bool = true
+  on flip() { on = not on }
+}

examples/library/ui_remount_parts/Shown.xml

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+<div>
+  <button on-click="flip()">flip</button>
+  <if test="{on}"><Counter label="c"/></if>
+</div>