fix:首页仪表盘中英显示和充值联动

src/store/modules/billing/billing.ts

@@ -0,0 +1,27 @@
+import { defineStore } from 'pinia';
+
+interface BillingState {
+  balance: number;
+  usedAmount: number;
+}
+
+export const useBillingStore = defineStore('billing', {
+  state: (): BillingState => ({
+    balance: 23,
+    usedAmount: 77,
+  }),
+
+  actions: {
+    updateBalance(newBalance: number) {
+      this.balance = Number(newBalance.toFixed(2));
+    },
+    updateUsedAmount(newUsedAmount: number) {
+      this.usedAmount = Number(newUsedAmount.toFixed(2));
+    }
+  },
+
+  getters: {
+    getBalance: (state): number => state.balance,
+    getUsedAmount: (state): number => state.usedAmount
+  }
+});