feat(web): 重做 #138/#133 的前端改动（LOGO 替换 + Loading Logo + 校验优化保留），尽量不覆盖他人代码

web/src/components/RegisterPage.tsx

@@ -92,7 +92,7 @@ export function RegisterPage() {
         {/* Logo */}
         <div className="text-center mb-8">
           <div className="w-16 h-16 mx-auto mb-4 flex items-center justify-center">
-            <img src="/icons/nofx.svg?v=2" alt="NOFX" className="w-16 h-16" />
+            <img src="/images/logo.png" alt="NoFx Logo" className="w-16 h-16 object-contain" />
           </div>
           <h1 className="text-2xl font-bold" style={{ color: '#EAECEF' }}>
             {t('appTitle', language)}