fix: 去掉「作品集」与「角色/主开发」字样

- 品牌栏与页面标题移除「作品集」副标题，仅保留 Zikai
- HeroSection 移除「角色: 主开发/Lead Developer」meta 项
- TeamCard 移除成员角色(主开发/开发/团队)，仅显示姓名
- 清理 i18n locales 中无用的 subtitle 字段及 App.vue 对应样式

src/modules/mobile-game/components/HeroSection.vue

@@ -7,8 +7,7 @@ const { locale } = useI18n({ useScope: 'global' })
 const meta = {
   course: { zh: '迈阿密大学 · 毕设 448 / 449', en: 'Miami University · Capstone 448 / 449' },
   stack: { zh: 'Unity · C# · WebGL · Android · PHP', en: 'Unity · C# · WebGL · Android · PHP' },
-  period: '2022',
-  role: { zh: '主开发', en: 'Lead Developer' }
+  period: '2022'
 }
 </script>
 
@@ -35,10 +34,6 @@ const meta = {
           <span class="hero__meta-label">{{ locale === 'zh-CN' ? '时间' : 'Period' }}</span>
           <span>{{ meta.period }}</span>
         </div>
-        <div class="hero__meta-item">
-          <span class="hero__meta-label">{{ locale === 'zh-CN' ? '角色' : 'Role' }}</span>
-          <span>{{ locale === 'zh-CN' ? meta.role.zh : meta.role.en }}</span>
-        </div>
       </div>
     </div>
   </section>

src/modules/mobile-game/components/TeamCard.vue

@@ -1,9 +1,5 @@
 <script setup>
-import { useI18n } from 'vue-i18n'
 import { team } from '../data/team.js'
-
-const { locale } = useI18n({ useScope: 'global' })
-const L = (obj) => (locale.value === 'zh-CN' ? obj.zh : obj.en)
 </script>
 
 <template>
@@ -12,7 +8,6 @@ const L = (obj) => (locale.value === 'zh-CN' ? obj.zh : obj.en)
       <div class="team__avatar">{{ m.name.charAt(0) }}</div>
       <div class="team__info">
         <div class="team__name">{{ m.name }}</div>
-        <div class="team__role">{{ L(m.role) }}</div>
       </div>
     </div>
   </div>
@@ -57,8 +52,4 @@ const L = (obj) => (locale.value === 'zh-CN' ? obj.zh : obj.en)
   font-size: 0.95rem;
   color: var(--text-primary);
 }
-.team__role {
-  font-size: 0.82rem;
-  color: var(--text-tertiary);
-}
 </style>