收口个人中心昵称输入组件

迁移昵称弹窗输入框到 PlatformTextField 暗色表单

保留新昵称 label 语义和 Enter 提交行为

补充昵称弹窗公共输入断言

更新 PlatformUiKit 文档和 Hermes 决策记录

src/components/rpg-entry/RpgEntryHomeView.tsx

@@ -2818,7 +2818,7 @@ function ProfileNicknameModal({
         <div className="px-5 py-5">
           <label className="block">
             <span className="sr-only">新昵称</span>
-            <input
+            <PlatformTextField
               autoFocus
               value={value}
               onChange={(event) => onChange(event.target.value)}
@@ -2829,7 +2829,10 @@ function ProfileNicknameModal({
                 }
               }}
               maxLength={20}
-              className="w-full rounded-2xl border border-white/12 bg-white/10 px-4 py-3 text-base font-semibold text-[var(--platform-text-strong)] outline-none transition focus:border-[var(--platform-surface-hover-border)]"
+              surface="editorDark"
+              size="lg"
+              density="roomy"
+              className="rounded-2xl border-white/12 bg-white/10 text-[var(--platform-text-strong)] focus:border-[var(--platform-surface-hover-border)]"
               placeholder="输入新昵称"
             />
           </label>