在交易列表页面顶部显示账户信息：新增账户图标、名称和余额信息卡片，优化单账户筛选时的显示逻辑

MY_REQUIREMENTS.md

@@ -33,14 +33,15 @@
 - 移动端 ListPage：账户列表显示「可用额度」（= `creditLimit + balance`，因信用卡余额为负值）
 - 语言包：中英文均已添加 "Credit Limit" / "Available"
 
-### 3. ⚠️ 账户交易列表顶部显示账户信息
-**描述：** 在按账户筛选的交易列表页面顶部，显示账户名称、余额（或信用卡欠款+额度）等信息卡片。
+### 3. 🟢 账户交易列表顶部显示账户信息
+**描述：** 在按单个账户筛选的交易列表页面顶部，显示账户图标、名称和余额信息卡片。
 
-**实现思路：**
-- 检测当前是否为单账户筛选状态
-- 顶部插入账户信息卡片组件
-- 若多账户筛选则显示多张卡片
-- 涉及文件：`src/views/mobile/transactions/ListPage.vue`
+**已完成：**
+- 仅单账户筛选时（`queryAllFilterAccountIdsCount === 1`）显示，多账户/全部时不显示
+- 信用卡账户显示「欠款 · 可用 xxx」，普通账户显示余额
+- 移动端：toolbar 下方插入 `f7-card`
+- 桌面端：日期范围行下方插入 `v-card`（tonal 样式）
+- 涉及文件：`src/views/mobile/transactions/ListPage.vue`、`src/views/desktop/transactions/ListPage.vue`
 
 ### 4. 🟢 允许直接修改账户余额（自动插入调整记录）
 **描述：** 在账户编辑页直接修改余额字段，保存时自动计算差值并插入一条「余额调整」类型交易记录。
@@ -132,12 +133,10 @@
 - Tab 切换动画保持原样（设置中已有开关可控制）
 - 涉及文件：`src/styles/mobile/global.scss`
 
-### 11. 🟢 点击响应卡顿优化
+### 11. 🔍 点击响应卡顿优化（暂调查）
 **描述：** 点击按钮有延迟感，点不上的问题。
 
-**已完成：**
-- `tapHoldDelay` 从默认 750ms 降至 500ms，减少长按判定等待
-- 涉及文件：`src/MobileApp.vue`
+**初步判断：** 可能是接口响应慢导致，非前端交互延迟问题。等离线缓存（#12）完成后再评估是否仍需处理。
 
 ---
 
@@ -163,7 +162,7 @@
 |---|------|------|
 | 1 | 自选主题色 | ⚠️ 待做 |
 | 2 | 信用卡额度 | 🟢 已完成 |
-| 3 | 账户信息卡片 | ⚠️ 待做 |
+| 3 | 账户信息卡片 | 🟢 已完成 |
 | 4 | 调整余额入口 | 🟢 已完成 |
 | 5 | 记账页显示余额 | 🟢 已完成 |
 | 6 | 记住上次账户 | ❓ 待定 |
@@ -171,5 +170,5 @@
 | 8 | 详情编辑/删除 | 🟢 已完成 |
 | 9 | 分类默认展开 | ❓ 待定 |
 | 10 | 全局动画加速 | 🟢 已完成 |
-| 11 | 点击卡顿优化 | 🟢 已完成 |
+| 11 | 点击卡顿优化 | 🔍 暂调查 |
 | 12 | 离线缓存 | ❌ 暂缓 |

src/views/desktop/transactions/ListPage.vue

@@ -172,6 +172,16 @@
                                         </div>
                                     </v-card-text>
 
+                                    <v-card-text class="pt-0" v-if="filteredSingleAccount">
+                                        <v-card variant="tonal" class="d-inline-flex align-center px-4 py-2" rounded="lg">
+                                            <ItemIcon icon-type="account" :icon-id="filteredSingleAccount.icon" :color="filteredSingleAccount.color" />
+                                            <div class="ms-3">
+                                                <div class="text-subtitle-1 font-weight-bold">{{ filteredSingleAccount.name }}</div>
+                                                <div class="text-body-2 text-medium-emphasis">{{ filteredAccountBalanceText }}</div>
+                                            </div>
+                                        </v-card>
+                                    </v-card-text>
+
                                     <v-card-text class="transaction-calendar-container pt-0" v-if="pageType === TransactionListPageType.Calendar.type">
                                         <transaction-calendar day-has-transaction-class="font-weight-bold"
                                                               :readonly="loading" :is-dark-mode="isDarkMode"
@@ -775,7 +785,8 @@ const {
     tt,
     getAllRecentMonthDateRanges,
     getWeekdayLongName,
-    getCurrentNumeralSystemType
+    getCurrentNumeralSystemType,
+    formatAmountToLocalizedNumeralsWithCurrency
 } = useI18n();
 
 const {
@@ -875,6 +886,24 @@ const showFilterTagDialog = ref<boolean>(false);
 const isDarkMode = computed<boolean>(() => theme.global.name.value === ThemeType.Dark);
 const numeralSystem = computed<NumeralSystem>(() => getCurrentNumeralSystemType());
 
+const filteredSingleAccount = computed(() => {
+    if (queryAllFilterAccountIdsCount.value !== 1) return null;
+    return allAccountsMap.value[query.value.accountIds] ?? null;
+});
+
+const filteredAccountBalanceText = computed<string>(() => {
+    const account = filteredSingleAccount.value;
+    if (!account) return '';
+    if (account.creditLimit) {
+        const outstanding = -account.balance;
+        const available = account.creditLimit + account.balance;
+        return formatAmountToLocalizedNumeralsWithCurrency(outstanding, account.currency)
+            + ' · ' + tt('Available') + ' ' + formatAmountToLocalizedNumeralsWithCurrency(available, account.currency);
+    }
+    const displayBalance = account.isLiability ? -account.balance : account.balance;
+    return formatAmountToLocalizedNumeralsWithCurrency(displayBalance, account.currency);
+});
+
 const allPageCounts = computed<NameNumeralValue[]>(() => {
     const pageCounts: NameNumeralValue[] = [];
     const availableCountPerPage: number[] = [ 5, 10, 15, 20, 25, 30, 50 ];

src/views/mobile/transactions/ListPage.vue

@@ -69,6 +69,16 @@
             </f7-link>
         </f7-toolbar>
 
+        <f7-card class="margin-vertical" v-if="filteredSingleAccount">
+            <f7-card-content class="display-flex align-items-center padding-half">
+                <ItemIcon icon-type="account" :icon-id="filteredSingleAccount.icon" :color="filteredSingleAccount.color" />
+                <div class="margin-inline-start-half">
+                    <div class="font-weight-bold">{{ filteredSingleAccount.name }}</div>
+                    <div><small>{{ filteredAccountBalanceText }}</small></div>
+                </div>
+            </f7-card-content>
+        </f7-card>
+
         <f7-block class="transaction-calendar-container margin-vertical" v-if="pageType === TransactionListPageType.Calendar.type">
             <transaction-calendar calendar-class="justify-content-center" week-day-name-type="short"
                                   :readonly="loading" :is-dark-mode="isDarkMode"
@@ -670,7 +680,8 @@ const {
     tt,
     getCurrentLanguageTextDirection,
     getCurrentNumeralSystemType,
-    getWeekdayShortName
+    getWeekdayShortName,
+    formatAmountToLocalizedNumeralsWithCurrency
 } = useI18n();
 
 const { showAlert, showToast, routeBackOnError } = useI18nUIComponents();
@@ -748,6 +759,24 @@ const textDirection = computed<TextDirection>(() => getCurrentLanguageTextDirect
 const numeralSystem = computed<NumeralSystem>(() => getCurrentNumeralSystemType());
 const isDarkMode = computed<boolean>(() => environmentsStore.framework7DarkMode || false);
 
+const filteredSingleAccount = computed(() => {
+    if (queryAllFilterAccountIdsCount.value !== 1) return null;
+    return allAccountsMap.value[query.value.accountIds] ?? null;
+});
+
+const filteredAccountBalanceText = computed<string>(() => {
+    const account = filteredSingleAccount.value;
+    if (!account) return '';
+    if (account.creditLimit) {
+        const outstanding = -account.balance;
+        const available = account.creditLimit + account.balance;
+        return formatAmountToLocalizedNumeralsWithCurrency(outstanding, account.currency)
+            + ' · ' + tt('Available') + ' ' + formatAmountToLocalizedNumeralsWithCurrency(available, account.currency);
+    }
+    const displayBalance = account.isLiability ? -account.balance : account.balance;
+    return formatAmountToLocalizedNumeralsWithCurrency(displayBalance, account.currency);
+});
+
 const transactions = computed<TransactionMonthList[]>(() => {
     if (loading.value) {
         return [];