cat: 1.2.0 — click popup panel with the cat and CPU % (#103)

Clicking the bar widget now toggles an attached panel showing the same
cat glyph at panel size plus the CPU percentage, replacing the old
notification. The widget publishes its visible state (glyph, cpu,
color, pace) through the plugin's shared state store and the panel
re-renders on each update, keeping the big cat frame-synced with the
bar cat.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

cat/cat.luau

@@ -100,10 +100,27 @@ local function resolveColor()
   return "secondary"
 end
 
+-- The click panel (cat_panel.luau) runs in a separate runtime; it mirrors the
+-- bar cat from this shared-state snapshot, republished whenever the visible
+-- glyph, whole CPU percent, or color changes (so at most once per animation
+-- frame, and only on sample/theme changes while idle).
+local lastPublished = nil
+local function publishState(pace, glyph, color)
+  local cpu = math.floor(cpuPercent)
+  local key = `{glyph}|{cpu}|{color}|{pace}`
+  if key == lastPublished then
+    return
+  end
+  lastPublished = key
+  noctalia.state.set("cat", { glyph = glyph, cpu = cpu, color = color, pace = pace })
+end
+
 local function render(pace)
   local glyph = pace == "idle" and GLYPH_IDLE or RUN_GLYPHS[frameIndex]
   local color = resolveColor()
 
+  publishState(pace, glyph, color)
+
   local children = {
     ui.label({ text = glyph, fontFamily = catFont, baseline = "inkCentered", fontSize = catSize, color = color }),
   }
@@ -144,7 +161,7 @@ function update()
 end
 
 function onClick()
-  noctalia.notify(noctalia.tr("title"), `CPU {math.floor(cpuPercent)}%`)
+  noctalia.togglePanel("dotnetrob/cat:panel")
 end
 
 function onConfigChanged()