feat: add Docker support and texture deletion functionality

Add Docker configuration with standalone output mode for containerized
deployment. Implement texture deletion API with proper error handling
and user feedback. Fix skin viewer sizing issues by using explicit
dimensions and removing conflicting layout properties. Add captcha
ID parameter to registration flow. Improve profile page UX including
Yggdrasil password reset display and character card editing controls.

src/components/SkinViewer.tsx

@@ -83,28 +83,24 @@ export default function SkinViewer({
     try {
       console.log('初始化3D皮肤查看器:', { skinUrl, isSlim, width, height });
       
-      // 使用canvas的实际尺寸，参考blessingskin
+      // 使用传入的宽高参数初始化
       const canvas = canvasRef.current;
       const viewer = new SkinViewer3D({
         canvas: canvas,
-        width: canvas.clientWidth || width,
-        height: canvas.clientHeight || height,
+        width: width,
+        height: height,
         skin: skinUrl,
         cape: capeUrl,
         model: isSlim ? 'slim' : 'default',
-        zoom: 1.0, // 使用blessingskin的zoom方式
+        zoom: 1.0,
       });
 
       viewerRef.current = viewer;
 
-      // 设置背景和控制选项 - 参考blessingskin
+      // 设置背景和控制选项
       viewer.background = null; // 透明背景
       viewer.autoRotate = false; // 完全禁用自动旋转
       
-      // 调整光照设置，避免皮肤发黑
-      viewer.globalLight.intensity = 0.8; // 增加环境光强度
-      viewer.cameraLight.intensity = 0.4; // 降低相机光源强度，避免过强的阴影
-      
       // 外部预览时禁用所有动画和旋转
       if (isExternalPreview) {
         viewer.autoRotate = false;
@@ -268,11 +264,8 @@ export default function SkinViewer({
       ref={canvasRef}
       className={className}
       style={{ 
-        display: 'flex', 
-        justifyContent: 'center', 
-        alignItems: 'center',
-        width: '100%', 
-        height: '100%' 
+        width: width, 
+        height: height 
       }}
     />
   );