fix(app): initialize overlay with canvas dimensions and offset draw_frame by padding

catser/app.py

@@ -48,10 +48,10 @@ class CatserApp:
 
         # 3. Transparent Overlay Window
         self.overlay = OverlayWindow(
-            width=self.config.cat_width,
-            height=self.config.cat_height,
-            initial_x=int(self.controller.x),
-            initial_y=int(self.controller.y),
+            width=self.config.canvas_width,
+            height=self.config.canvas_height,
+            initial_x=int(self.controller.x - self.config.pad_x),
+            initial_y=int(self.controller.y - self.config.pad_y),
             on_mouse_down=self.controller.on_mouse_down,
             on_mouse_move=self.controller.on_mouse_move,
             on_mouse_up=self.controller.on_mouse_up,
@@ -100,7 +100,11 @@ class CatserApp:
                 frame = self.controller.update(dt)
 
                 # 4. Update Layered Window Position & Pixels
-                self.overlay.draw_frame(frame, self.controller.x, self.controller.y)
+                self.overlay.draw_frame(
+                    frame,
+                    self.controller.x - self.config.pad_x,
+                    self.controller.y - self.config.pad_y,
+                )
 
                 # 5. Check duration limit
                 if max_seconds and (now - start_time >= max_seconds):