feat: 新增财务健康评分弹窗组件，展示用户财务状况、提供AI建议并说明评分规则。

src/components/home/HealthScoreModal/HealthScoreModal.tsx

@@ -34,7 +34,7 @@ export const HealthScoreModal: React.FC<HealthScoreModalProps> = ({
     const [loadingAdvice, setLoadingAdvice] = useState(false);
 
     // --- Logic & Calculations ---
-    const netAssets = totalAssets - totalLiabilities;
+
     const debtRatio = totalAssets > 0 ? (totalLiabilities / totalAssets) * 100 : 0;
     const spendDiff = todaySpend - yesterdaySpend;