feat(v1.5): 触摸键盘、格子大字计数、客户停用/删除、按钮收纳、7 天徽标、抽屉时钟

1) 工作台速录
- 手机尾号输入框下方新增 3×4 触摸小键盘（1-9、0、⌫、✓），点 ✓ 直接提交；实体键盘仍可输入
- 抽屉顶部新增秒级时钟（HH:MM:SS），位于日期标题上方

2) 日历格子
- 移除排单缩略信息（客户名/套餐色签/“x/y 单”小字）
- 保留左侧打手颜色竖条，中间改为大字「待完成 / 总数」，例如 1/2 = 还剩 1 单、共 2 单
- 大屏格子按此前约定保持原样

3) 客户停用 / 恢复 / 彻底删除
- customers 新增 archived 列（0/1）；停用后默认从客户列表、日历、待办、大屏、到期提醒、徽标中隐藏，订阅与打卡记录原样保留
- 恢复后立即回到日历；列表右上角可切换「显示已停用」，已停用行带标记
- 彻底删除为二次确认操作，依赖外键级联清理订阅、打卡、暂停、追加记录与加急标记
- 停用/恢复/删除都会写入操作日志

4) 按钮收纳
- 任务行只露出「完成」，跳过 / 加急（取消加急）/ 追加收进「⋯」菜单；已完成行只露「撤销打卡」等，点空白处自动收起
- 加急、跳过等原有能力不变，仅入口折叠

5) 顶栏
- 在「今日到期」「3 天内到期」右侧新增「7 天内到期」徽标，固定统计未来 7 天

6) 视觉
- 移除管理端背景的横线装饰，改为纯底色；大屏网格背景保留

数据库兼容性：
- 只新增 customers.archived 一列，老库启动时自动 ALTER，可重复迁移；原有表结构与接口不变

测试：
- 新增单测 TestCustomerArchiveFilters：停用后日历/到期/徽标/搜索/列表全部过滤、恢复回日历、彻底删除级联清理订阅与打卡
- 功能验证 20 项（键盘、格子计数、折叠菜单、7 天徽标、时钟、停用/恢复/删除、背景）全部通过
- 原有 119 项验收回归全绿；go vet / go test ./... 通过；版本号 1.5.0

internal/store/stats.go

@@ -22,13 +22,18 @@ type Stats struct {
 }
 
 // Badges 顶栏常驻徽标。
-func (db *DB) Badges(today time.Time) (dueToday, due3 int, err error) {
+func (db *DB) Badges(today time.Time) (dueToday, due3, due7 int, err error) {
 	t := domain.Date(today)
-	if err = db.sql.QueryRow(`SELECT COUNT(*) FROM subscriptions WHERE status<>'closed' AND end_date=?`, t).Scan(&dueToday); err != nil {
+	const notArchived = ` AND IFNULL((SELECT archived FROM customers c WHERE c.id=customer_id),0)=0`
+	if err = db.sql.QueryRow(`SELECT COUNT(*) FROM subscriptions WHERE status<>'closed' AND end_date=?`+notArchived, t).Scan(&dueToday); err != nil {
 		return
 	}
-	err = db.sql.QueryRow(`SELECT COUNT(*) FROM subscriptions WHERE status<>'closed' AND end_date BETWEEN ? AND ?`,
-		t, domain.Date(domain.AddDays(today, 2))).Scan(&due3)
+	if err = db.sql.QueryRow(`SELECT COUNT(*) FROM subscriptions WHERE status<>'closed' AND end_date BETWEEN ? AND ?`+notArchived,
+		t, domain.Date(domain.AddDays(today, 2))).Scan(&due3); err != nil {
+		return
+	}
+	err = db.sql.QueryRow(`SELECT COUNT(*) FROM subscriptions WHERE status<>'closed' AND end_date BETWEEN ? AND ?`+notArchived,
+		t, domain.Date(domain.AddDays(today, 6))).Scan(&due7)
 	return
 }
 
@@ -42,14 +47,17 @@ func (db *DB) ScreenStats(today time.Time, warnDays int) (*Stats, error) {
 	if st.ActiveSubs, err = db.CountActiveSubs(domain.Date(today)); err != nil {
 		return nil, err
 	}
-	if err = db.sql.QueryRow(`SELECT COUNT(*) FROM subscriptions WHERE status='paused'`).Scan(&st.PausedSubs); err != nil {
+	if err = db.sql.QueryRow(`SELECT COUNT(*) FROM subscriptions WHERE status='paused'
+		AND IFNULL((SELECT archived FROM customers c WHERE c.id=customer_id),0)=0`).Scan(&st.PausedSubs); err != nil {
 		return nil, err
 	}
-	if err = db.sql.QueryRow(`SELECT COUNT(*) FROM subscriptions WHERE status<>'closed' AND end_date=?`,
+	if err = db.sql.QueryRow(`SELECT COUNT(*) FROM subscriptions WHERE status<>'closed' AND end_date=?
+		AND IFNULL((SELECT archived FROM customers c WHERE c.id=customer_id),0)=0`,
 		domain.Date(today)).Scan(&st.DueToday); err != nil {
 		return nil, err
 	}
-	if err = db.sql.QueryRow(`SELECT COUNT(*) FROM subscriptions WHERE status<>'closed' AND end_date BETWEEN ? AND ?`,
+	if err = db.sql.QueryRow(`SELECT COUNT(*) FROM subscriptions WHERE status<>'closed' AND end_date BETWEEN ? AND ?
+		AND IFNULL((SELECT archived FROM customers c WHERE c.id=customer_id),0)=0`,
 		domain.Date(today), domain.Date(domain.AddDays(today, 6))).Scan(&st.Due7); err != nil {
 		return nil, err
 	}
@@ -60,8 +68,9 @@ func (db *DB) ScreenStats(today time.Time, warnDays int) (*Stats, error) {
 	// 本月到期热力
 	ms := domain.MonthStart(today.Year(), today.Month())
 	me := domain.MonthEnd(today.Year(), today.Month())
-	rows, err := db.sql.Query(`SELECT end_date, COUNT(*) FROM subscriptions
-		WHERE status<>'closed' AND end_date BETWEEN ? AND ? GROUP BY end_date`,
+	rows, err := db.sql.Query(`SELECT end_date, COUNT(*) FROM subscriptions s
+		JOIN customers c ON c.id=s.customer_id
+		WHERE s.status<>'closed' AND IFNULL(c.archived,0)=0 AND s.end_date BETWEEN ? AND ? GROUP BY s.end_date`,
 		domain.Date(ms), domain.Date(me))
 	if err != nil {
 		return nil, err
@@ -80,12 +89,12 @@ func (db *DB) ScreenStats(today time.Time, warnDays int) (*Stats, error) {
 
 	// TOP：按日按剩余天数、按次按剩余次数，各自排序后交替取前 10
 	t := domain.Date(today)
-	daySubs, err := db.querySubs(subSelect+` WHERE s.status<>'closed' AND s.unit='day' AND s.end_date>=?
+	daySubs, err := db.querySubs(subSelect+` WHERE s.status<>'closed' AND IFNULL(c.archived,0)=0 AND s.unit='day' AND s.end_date>=?
 		ORDER BY s.end_date ASC LIMIT 12`, t)
 	if err != nil {
 		return nil, err
 	}
-	cntSubs, err := db.querySubs(subSelect+` WHERE s.status<>'closed' AND s.unit='count' AND s.used_count < s.total_count
+	cntSubs, err := db.querySubs(subSelect+` WHERE s.status<>'closed' AND IFNULL(c.archived,0)=0 AND s.unit='count' AND s.used_count < s.total_count
 		AND (IFNULL(s.end_date,'')='' OR s.end_date>=?)
 		ORDER BY (s.total_count - s.used_count) ASC LIMIT 12`, t)
 	if err != nil {
@@ -109,6 +118,6 @@ func (db *DB) ScreenStats(today time.Time, warnDays int) (*Stats, error) {
 // RecentDue 返回未来 n 天内到期的订阅（按到期日排序）。
 func (db *DB) RecentDue(from string, days int) ([]Subscription, error) {
 	to := domain.Date(domain.AddDays(domain.ParseDateOr(from, domain.Today()), days-1))
-	return db.querySubs(subSelect+` WHERE s.status<>'closed' AND s.end_date BETWEEN ? AND ?
+	return db.querySubs(subSelect+` WHERE s.status<>'closed' AND IFNULL(c.archived,0)=0 AND s.end_date BETWEEN ? AND ?
 		ORDER BY s.end_date, s.id`, from, to)
 }