fix: validate account creation password

LianSyn-platform/index.html

@@ -96,7 +96,7 @@
           </div>
           <form id="accountForm" class="channel-form" novalidate>
             <label>账号<input id="accountUsername" maxlength="160" autocomplete="off" required></label>
-            <label>初始密码<input id="accountPassword" type="password" minlength="12" maxlength="512" autocomplete="new-password" required></label>
+            <label>初始密码（12—512 个字符）<input id="accountPassword" type="password" minlength="12" maxlength="512" autocomplete="new-password" required></label>
             <label>角色<select id="accountRole"><option value="user">普通用户</option><option value="team_lead">组长</option><option value="admin">管理员</option></select></label>
             <label class="history-select-all"><input id="accountMustChangePassword" type="checkbox" checked>首次登录必须修改密码</label>
             <button type="submit">创建账号</button>