fix: Mobile image crop fix

frontend/src/shared/components/CameraCapture/CropTool.tsx

@@ -3,7 +3,7 @@
  * @ai-context Allows user to adjust crop area with touch/mouse, confirm or retake
  */
 
-import React, { useCallback, useState } from 'react';
+import React, { useCallback, useState, useRef, useEffect } from 'react';
 import { Box, IconButton, Button, Typography, CircularProgress } from '@mui/material';
 import CheckIcon from '@mui/icons-material/Check';
 import RefreshIcon from '@mui/icons-material/Refresh';
@@ -22,12 +22,28 @@ export const CropTool: React.FC<CropToolProps> = ({
   onSkip,
 }) => {
   const [isProcessing, setIsProcessing] = useState(false);
+  const imageAreaRef = useRef<HTMLDivElement>(null);
+  const [imageMaxHeight, setImageMaxHeight] = useState(0);
 
   const { cropArea, isDragging, resetCrop, executeCrop, handleDragStart } =
     useImageCrop({
       aspectRatio: lockAspectRatio ? aspectRatio : undefined,
     });
 
+  // Measure available height for the image so the crop container
+  // matches the rendered image exactly (fixes mobile crop offset)
+  useEffect(() => {
+    const updateMaxHeight = () => {
+      if (imageAreaRef.current) {
+        const rect = imageAreaRef.current.getBoundingClientRect();
+        setImageMaxHeight(rect.height - 32); // subtract p:2 padding (16px * 2)
+      }
+    };
+    updateMaxHeight();
+    window.addEventListener('resize', updateMaxHeight);
+    return () => window.removeEventListener('resize', updateMaxHeight);
+  }, []);
+
   const handleConfirm = useCallback(async () => {
     setIsProcessing(true);
     try {
@@ -61,6 +77,7 @@ export const CropTool: React.FC<CropToolProps> = ({
     >
       {/* Image with crop overlay */}
       <Box
+        ref={imageAreaRef}
         sx={{
           flex: 1,
           position: 'relative',
@@ -75,8 +92,6 @@ export const CropTool: React.FC<CropToolProps> = ({
           data-crop-container
           sx={{
             position: 'relative',
-            maxWidth: '100%',
-            maxHeight: '100%',
             userSelect: 'none',
             touchAction: isDragging ? 'none' : 'auto',
           }}
@@ -87,7 +102,7 @@ export const CropTool: React.FC<CropToolProps> = ({
             alt="Captured"
             style={{
               maxWidth: '100%',
-              maxHeight: '100%',
+              maxHeight: imageMaxHeight > 0 ? `${imageMaxHeight}px` : '70vh',
               display: 'block',
             }}
             draggable={false}