feat: 替换底部tab富图标为水滴设计并修正引用

富(水)维度使用水滴💧图形，颜色放在图形上，背景透明。未选中灰色，选中金色#F59E0B。同时修正custom-tab-bar中富tab的图标引用从tab-profile改为tab-wealth。

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

cfc-frontend/custom-tab-bar/index.vue

@@ -48,7 +48,7 @@ export default {
         { text: '身', pagePath: '/pages/body/index', icon: '/static/tab-body.png', selectedIcon: '/static/tab-body-active.png' },
         { text: '智', pagePath: '/pages/wisdom/index', icon: '/static/tab-wisdom.png', selectedIcon: '/static/tab-wisdom-active.png' },
         { text: '心', pagePath: '/pages/mind/index', icon: '/static/tab-mind.png', selectedIcon: '/static/tab-mind-active.png' },
-        { text: '富', pagePath: '/pages/profile/profile', icon: '/static/tab-profile.png', selectedIcon: '/static/tab-profile-active.png' }
+        { text: '富', pagePath: '/pages/profile/profile', icon: '/static/tab-wealth.png', selectedIcon: '/static/tab-wealth-active.png' }
       ],
       teacherTabs: [
         { text: '首页', pagePath: '/pages/teacher/index', icon: '/static/tab-action.png', selectedIcon: '/static/tab-action-active.png' },