the hover tax is pinned and cut, and a spell-less macro is a button

- a tooltip change costs ~1.3 ms — five whole-interface recomputes, each working as designed: the quad re-convert at 474 µs, the Lua tick at 287, the layout resolve at 200, bevy's `Assets<Mesh>` tax at ~270 and the mesh rebuild at 146 — pinned with new hover probes (a jitter dial, a `WOW_PROBE_HOVER_DUTY` duty cycle so run drift cancels, an `AssetChanged` tax meter), and the layout preamble's two whole-roster scans become lists maintained at the writer (52–83 µs → 1–11)
- the splice compared this frame's entries against last frame's by index, so one inserted highlight shifted the 160 entries behind it and read as "everything changed"; it now aligns on `z` — an identity, not a position — and a `Text` entry that writes only quads became spliceable, so a tooltip change re-converts 22 entries instead of 520 (`convert` +439 µs → +107), with `WOW_UI_SPLICE_VERIFY` running the full conversion behind every spliced frame: 0 mismatches over 1,078
- a spell-less macro is a usable action button, not the 0.4 grey — the reference's usable compute has a dedicated leg answering usable for the bound-spell zero, cross-checked at the bytes in the reference's disassembly — and the button's Name line is written unconditionally from `GetActionText` as the reference does, so the macro's name sits under its icon and a `/cast` of a spell the character does not know now greys, which is also 1.12's behaviour (B340)
- a capture bounds its run in wall-clock seconds, because a frame cap is no cap at the ~1 fps a starved `nextDrawable` leaves — 1800 frames is thirty minutes there — and the teardown backstop runs on every run as a liveness guarantee, carrying the exit code the run asked for; the Multisampling row reads Off / 2x / 4x, since "1x" contradicts the no-multisampling byte both of the reference's enumerators normalise to and the bit-depth prefix was identical on every row

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

crates/benilla-ui/src/script/tooltip_unit.rs

@@ -262,15 +262,19 @@ fn update_bar(lua: &Lua, h: FrameHandle, unit: Option<&UnitState>) {
 pub(super) fn on_unit_push(lua: &Lua, token: &str) {
     let hits: Vec<FrameHandle> = {
         let model = lua.app_data_mut::<Model>().expect("model app_data");
+        // The arena's tooltip registry (1634), gated by the resolve's roster exactly as the walk
+        // it replaces was — `update_bar` writes layout.
         model
-            .frame_to_id
-            .keys()
+            .arena
+            .tooltip_kinds()
+            .iter()
             .copied()
             .filter(|&h| {
-                matches!(
-                    model.arena.frame(h).map(|f| &f.kind_state),
-                    Some(KindState::Tooltip(t)) if t.unit_token.as_deref() == Some(token)
-                )
+                model.frame_to_id.contains_key(&h)
+                    && matches!(
+                        model.arena.frame(h).map(|f| &f.kind_state),
+                        Some(KindState::Tooltip(t)) if t.unit_token.as_deref() == Some(token)
+                    )
             })
             .collect()
     };