fix(station-bar): reserve the bar's whole surface so it stops eating clicks

The CyberQueer GTK4 theme puts `padding: 20px` on the `window` node, which
inflated the layer surface from BAR_HEIGHT (44px) to 84px. The extra 40px is
transparent but still part of the surface's input region, and only 44px were
reserved as the exclusive zone — so the bar hovered over the top of every
window below and swallowed clicks there (e.g. Firefox's address bar).

Zero the window node's padding/margin/border in the bar's own USER+1
stylesheet, and swap the hardcoded set_exclusive_zone(BAR_HEIGHT) for
auto_exclusive_zone_enable() so the reserved zone tracks the real surface
height whatever the theme does. Verified: surface and reserved are both 44px
on all three outputs, and the D-Bus hide/show toggle still releases and
restores the zone.

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

desktopenvs/hyprdrive/station-bar/bar.py

@@ -216,7 +216,14 @@ class StationBar(Gtk.Window):
         for edge in (LayerShell.Edge.LEFT, LayerShell.Edge.RIGHT, LayerShell.Edge.TOP):
             LayerShell.set_anchor(self, edge, True)
             LayerShell.set_margin(self, edge, 0)
-        LayerShell.set_exclusive_zone(self, self.BAR_HEIGHT)
+        # Reserve the surface's REAL height, not the BAR_HEIGHT constant: the
+        # layer surface can end up taller than the strip we draw (the GTK theme
+        # adds padding to the `window` node, CSS may grow a widget, ...) and any
+        # pixel of surface beyond the exclusive zone still swallows clicks while
+        # sitting on top of a window — that's what ate clicks on Firefox's
+        # address bar. auto-exclusive keeps zone == height on every resize, so
+        # the bar always blocks exactly the area it covers.
+        LayerShell.auto_exclusive_zone_enable(self)
 
     def _monitor_connector(self) -> Optional[str]:
         """The Gdk connector name (e.g. "DP-1"), which equals the Hyprland
@@ -573,7 +580,9 @@ class StationBar(Gtk.Window):
 
     # -- external control (D-Bus show/hide/toggle, see main.py) -------------------
     def show_bar(self) -> None:
-        LayerShell.set_exclusive_zone(self, self.BAR_HEIGHT)
+        # set_exclusive_zone(0) in _finish_hide() turned auto-exclusive off; the
+        # re-enable both restores the reservation and re-syncs it to the height.
+        LayerShell.auto_exclusive_zone_enable(self)
         self.set_visible(True)
         self.present()
         self._ensure_tick()

desktopenvs/hyprdrive/station-bar/style/style.css

@@ -37,6 +37,21 @@ drawingarea {
   background: transparent;
 }
 
+/* The surface must be exactly BAR_HEIGHT tall. The CyberQueer GTK theme puts
+ * `padding: 20px` on the `window` node, which inflated the layer surface to
+ * 44+40 = 84px; the extra 40px is invisible (transparent) but still part of
+ * the bar's input region, so it hovered over the top of windows and ate their
+ * clicks — e.g. Firefox's address bar. Zero it out here; bar.py additionally
+ * reserves the surface's real height via auto-exclusive-zone. */
+.station-bar-window {
+  padding: 0;
+  margin: 0;
+  border: none;
+  box-shadow: none;
+  min-width: 0;
+  min-height: 0;
+}
+
 /* Neutralise the CyberQueer GTK theme's `* { background-color:#1a1a1a }` on
  * every node — enumerating node names above misses some (labels, the CenterBox
  * boxes). This provider is at USER+1, above the theme; interactive elements