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/README.md

@@ -9,12 +9,18 @@ colored to match your theme, or any color you pick.
 | Field | Value |
 | --- | --- |
 | ID | `dotnetrob/cat` |
-| Entries | Bar widget: `cat` |
+| Entries | Bar widget: `cat`; panel: `panel` |
 
 ## Usage
 
 Add the "Cat" widget to any bar from Settings → Bar → Add Widget. Click the
-widget to show a notification with the current CPU percentage.
+widget to toggle a popup panel showing the same cat at panel size — animating
+in step with the bar cat — plus the current CPU percentage; click anywhere
+outside the panel to dismiss it. The panel can also be toggled over IPC:
+
+```sh
+noctalia msg panel-toggle dotnetrob/cat:panel
+```
 
 ## Settings
 
@@ -32,7 +38,9 @@ widget to show a notification with the current CPU percentage.
 
 Every `poll_interval` seconds the widget reads `/proc/stat` to compute CPU
 usage — no other files are read or written, nothing is downloaded, and no
-processes are spawned. The cat's shape comes from a small custom icon font
+processes are spawned. The panel does no sampling of its own: it mirrors the
+bar widget through the plugin's in-process shared state store, so without a
+cat widget in any bar it shows a sleeping cat with no CPU reading. The cat's shape comes from a small custom icon font
 (`fonts/catwalk2.otf`) traced from the MIT-licensed
 [CatWalk](https://store.kde.org/p/2055225) plasmoid by Driglu4it, which lets
 it be recolored like normal bar text instead of a fixed-color image.