Optimize scrolling checkpoint

packages/cli/src/ui/hooks/useMouseClick.ts

@@ -12,6 +12,7 @@ import {
   type MouseEvent,
   type MouseEventName,
 } from '../contexts/MouseContext.js';
+import { debugLogger } from '@google/gemini-cli-core';
 
 export const useMouseClick = (
   containerRef: React.RefObject<DOMElement | null>,
@@ -30,6 +31,10 @@ export const useMouseClick = (
     (event: MouseEvent) => {
       const eventName =
         name ?? (button === 'left' ? 'left-press' : 'right-release');
+
+      debugLogger.log(
+        `[useMouseClick] received event=${event.name} expected=${eventName} hasContainer=${!!containerRef.current}`,
+      );
       if (event.name === eventName && containerRef.current) {
         const { x, y, width, height } = getBoundingBox(containerRef.current);
         // Terminal mouse events are 1-based, Ink layout is 0-based.
@@ -39,12 +44,17 @@ export const useMouseClick = (
         const relativeX = mouseX - x;
         const relativeY = mouseY - y;
 
+        debugLogger.log(
+          `[useMouseClick] bounds x=${x} y=${y} w=${width} h=${height} mouseX=${mouseX} mouseY=${mouseY} relX=${relativeX} relY=${relativeY}`,
+        );
+
         if (
           relativeX >= 0 &&
           relativeX < width &&
           relativeY >= 0 &&
           relativeY < height
         ) {
+          debugLogger.log(`[useMouseClick] Triggering handler!`);
           handlerRef.current(event, relativeX, relativeY);
         }
       }