Make the background FX drain visible: a busy cursor over the panel and a footer readout that names its direction, driven off fxReclaimActivity

src/shell/panel/panel_render.cpp

@@ -147,13 +147,15 @@ void drawFooter(LICE_IBitmap* bmp, int w, int h) {
         }
     }
 
-    // Per-mode member count, a compact dim readout beside the toggle. Passive text, not a control.
+    // The one passive readout beside the toggle: a moving FX drain, else the per-mode member
+    // count (footerReadout owns which). Passive text, not a control. The drain draws
+    // text/primary against the count's text/dim so a transient state reads as one.
     if (!fb.count.empty()) {
-        const int members = activeModeMemberCount();
-        const std::string countLabel =
-            std::to_string(members) + (members == 1 ? " track" : " tracks");
+        const bool draining = g_panel.fxDrain != FxDrainState::Idle;
+        const std::string label = footerReadout(g_panel.fxDrain, activeModeMemberCount());
         kitText(bmp, KitBox{fb.count.x, fb.count.y, fb.count.width, fb.count.height},
-                countLabel.c_str(), Font::Micro, Role::TextDim, Align::Center);
+                label.c_str(), Font::Micro,
+                draining ? Role::TextPrimary : Role::TextDim, Align::Center);
     }
 
     // Tail BUTTON — a real kit button with rest/hover states; its click cycles the tail