Fix invisible overlay blocking mouse clicks

src/utils/window_hook.py

@@ -65,6 +65,10 @@ class WindowHook:
         # (Window 420x140, Pill 380x100)
         self.logical_rect = [20, 20, 20+380, 20+100]
         self.current_scale = initial_scale
+        self.enabled = True # New flag
+
+    def set_enabled(self, enabled):
+        self.enabled = enabled
 
     def install(self):
         proc_address = ctypes.cast(self.new_wnd_proc, ctypes.c_void_p)
@@ -73,6 +77,10 @@ class WindowHook:
     def wnd_proc_callback(self, hwnd, msg, wParam, lParam):
         try:
             if msg == WM_NCHITTEST:
+                # If disabled (invisible/inactive), let clicks pass through (HTTRANSPARENT)
+                if not self.enabled:
+                    return HTTRANSPARENT
+                    
                 res = self.on_nchittest(lParam)
                 if res != 0: 
                     return res