try to fix mobile crop

templates/index.html

@@ -748,7 +748,7 @@
                     <p><strong>Codec:</strong> ${videoInfo.codec}</p>
                     <div style="margin-top: 15px; text-align: center;">
                         <button class="crop-mode-btn" id="crop-mode-btn">🎯 Click to Draw Crop Area</button>
-                        <p class="crop-hint" id="crop-hint" style="display: none;">Click and drag to select • Drag corners to resize • Drag center to move</p>
+                        <p class="crop-hint" id="crop-hint" style="display: none;">Click and drag to select • Drag corners and edges to resize or double click them to max • Drag center to move</p>
                     </div>
                 `;
 
@@ -830,10 +830,26 @@
 
         cropCanvas.addEventListener('mousedown', (e) => {
             if (!cropMode) return;
+            e.preventDefault();
             const rect = cropCanvas.getBoundingClientRect();
             const mouseX = e.clientX - rect.left;
             const mouseY = e.clientY - rect.top;
             
+            handlePointerDown(mouseX, mouseY);
+        });
+        
+        cropCanvas.addEventListener('touchstart', (e) => {
+            if (!cropMode) return;
+            e.preventDefault();
+            const rect = cropCanvas.getBoundingClientRect();
+            const touch = e.touches[0];
+            const mouseX = touch.clientX - rect.left;
+            const mouseY = touch.clientY - rect.top;
+            
+            handlePointerDown(mouseX, mouseY);
+        });
+        
+        function handlePointerDown(mouseX, mouseY) {
             // Check if clicking on a handle
             if (cropRect) {
                 const handle = getHandleAtPosition(mouseX, mouseY);
@@ -866,7 +882,7 @@
             cropRect = null;
             startX = mouseX;
             startY = mouseY;
-        });
+        }
 
         cropCanvas.addEventListener('mousemove', (e) => {
             if (!cropMode) return;
@@ -874,6 +890,21 @@
             const mouseX = e.clientX - rect.left;
             const mouseY = e.clientY - rect.top;
             
+            handlePointerMove(mouseX, mouseY);
+        });
+        
+        cropCanvas.addEventListener('touchmove', (e) => {
+            if (!cropMode) return;
+            e.preventDefault();
+            const rect = cropCanvas.getBoundingClientRect();
+            const touch = e.touches[0];
+            const mouseX = touch.clientX - rect.left;
+            const mouseY = touch.clientY - rect.top;
+            
+            handlePointerMove(mouseX, mouseY);
+        });
+        
+        function handlePointerMove(mouseX, mouseY) {
             // Update cursor based on position
             if (!isDrawing && !isDraggingHandle && !isDraggingEdge && !isDraggingBox && cropRect) {
                 const handle = getHandleAtPosition(mouseX, mouseY);
@@ -924,11 +955,20 @@
                 };
                 drawCropRect();
             }
-        });
+        }
 
         cropCanvas.addEventListener('mouseup', (e) => {
             if (!cropMode) return;
-            
+            handlePointerUp();
+        });
+        
+        cropCanvas.addEventListener('touchend', (e) => {
+            if (!cropMode) return;
+            e.preventDefault();
+            handlePointerUp();
+        });
+        
+        function handlePointerUp() {
             if (isDrawing || isDraggingHandle || isDraggingEdge || isDraggingBox) {
                 updateFormFields();
             }
@@ -943,20 +983,18 @@
             
             // Keep crop mode active and canvas visible
             drawCropRect();
-        });
+        }
         
         // Handle mouse leaving canvas while dragging
         cropCanvas.addEventListener('mouseleave', (e) => {
             if (isDrawing || isDraggingHandle || isDraggingEdge || isDraggingBox) {
-                // Finish the drag operation
-                updateFormFields();
-                isDrawing = false;
-                isDraggingHandle = false;
-                isDraggingEdge = false;
-                isDraggingBox = false;
-                activeHandle = null;
-                activeEdge = null;
-                drawCropRect();
+                handlePointerUp();
+            }
+        });
+        
+        cropCanvas.addEventListener('touchcancel', (e) => {
+            if (cropMode) {
+                handlePointerUp();
             }
         });
         
@@ -1038,6 +1076,9 @@
         function getHandleAtPosition(x, y) {
             if (!cropRect) return null;
             
+            // Larger hit area on mobile (touch targets should be at least 44x44px)
+            const hitSize = 'ontouchstart' in window ? 22 : handleSize;
+            
             const handles = [
                 { name: 'tl', x: cropRect.x, y: cropRect.y },
                 { name: 'tr', x: cropRect.x + cropRect.width, y: cropRect.y },
@@ -1046,7 +1087,7 @@
             ];
             
             for (const handle of handles) {
-                if (Math.abs(x - handle.x) <= handleSize && Math.abs(y - handle.y) <= handleSize) {
+                if (Math.abs(x - handle.x) <= hitSize && Math.abs(y - handle.y) <= hitSize) {
                     return handle.name;
                 }
             }
@@ -1056,30 +1097,32 @@
         function getEdgeAtPosition(x, y) {
             if (!cropRect) return null;
             
-            const tolerance = 15; // Click detection tolerance in pixels
+            // Larger tolerance on mobile for easier touch interaction
+            const tolerance = 'ontouchstart' in window ? 25 : 15;
             const { x: rx, y: ry, width: rw, height: rh } = cropRect;
+            const hitSize = 'ontouchstart' in window ? 22 : handleSize;
             
             // Check if within the rectangle bounds (with tolerance)
             const inHorizontalRange = x >= rx - tolerance && x <= rx + rw + tolerance;
             const inVerticalRange = y >= ry - tolerance && y <= ry + rh + tolerance;
             
             // Top edge (exclude corners)
-            if (Math.abs(y - ry) <= tolerance && x > rx + handleSize && x < rx + rw - handleSize) {
+            if (Math.abs(y - ry) <= tolerance && x > rx + hitSize && x < rx + rw - hitSize) {
                 return 'top';
             }
             
             // Bottom edge (exclude corners)
-            if (Math.abs(y - (ry + rh)) <= tolerance && x > rx + handleSize && x < rx + rw - handleSize) {
+            if (Math.abs(y - (ry + rh)) <= tolerance && x > rx + hitSize && x < rx + rw - hitSize) {
                 return 'bottom';
             }
             
             // Left edge (exclude corners)
-            if (Math.abs(x - rx) <= tolerance && y > ry + handleSize && y < ry + rh - handleSize) {
+            if (Math.abs(x - rx) <= tolerance && y > ry + hitSize && y < ry + rh - hitSize) {
                 return 'left';
             }
             
             // Right edge (exclude corners)
-            if (Math.abs(x - (rx + rw)) <= tolerance && y > ry + handleSize && y < ry + rh - handleSize) {
+            if (Math.abs(x - (rx + rw)) <= tolerance && y > ry + hitSize && y < ry + rh - hitSize) {
                 return 'right';
             }