refactor: patient frontend UI overhaul

- Reworked design system (variables, global styles, component CSS)
- Updated TabBar with icon-based navigation
- Redesigned HomePage, HealthHub, ServicesHub layouts
- Improved Exercise/Diet, Medication, Profile pages styling
- Simplified constants (removed emoji icons, streamlined data)
- Fixed launch.json cwd paths for frontend projects

frontend-patient/src/pages/services/FollowUpListPage.tsx

@@ -33,7 +33,7 @@ export function FollowUpListPage() {
         <button className={`${styles.tab} ${tab === 'completed' ? styles.tabActive : ''}`} onClick={() => setTab('completed')}>已完成</button>
       </div>
       {filtered.length === 0 ? (
-        <Empty icon="🏥" message="暂无复查计划" />
+        <Empty message="暂无复查计划" />
       ) : (
         filtered.map((f) => (
           <Card key={f.id} className={styles.card}>