feat(v1.7): 计数改已完成/总数、客户月历、套餐标签合并、批量开通、触控模式、按次到期

1) 日历计数口径
- 工作台与大屏的格子统一改为「已完成 / 总数」（如 2/5 = 共 5 单、做完 2 单）

2) 客户详情·当月排单
- 新增客户专属月历：每天显示 已完成/总数，可翻月，点某天跳转到日历对应日期
- 没有排单的日期淡化显示

3) 套餐标签与页签合并
- packages 新增 tag 列（可空），套餐编辑页可填
- 日历/大屏页签按标签合并：同标签套餐合成一个页签；勾了「独立显示」的套餐额外再开一个自己的页签
- 大屏同样支持标签筛选，链接参数为 tag=xxx

4) 批量开通
- 新增套餐详情页 /packages/{id}：显示套餐信息 + 客户列表
- 表头「全选」置顶，已订阅该套餐的客户置灰不可选；开始日期默认今天、天数/次数默认取套餐设置，均可改
- POST /packages/{id}/subscribe 批量开通，重复的自动跳过并汇总提示
- 修复 r.PostForm 未 ParseForm 导致拿不到勾选项的问题（批量打卡同源问题一并修正）

5) 触控 / PC 模式
- 尾号输入框右侧新增切换按钮，触控模式展开 3×4 键盘、输入框只读 + inputmode=none（不唤起系统输入法），按键直接写值
- 偏好记在 localStorage，默认 PC 模式（键盘收起）

6) 按次到期
- 按次订阅的到期日保持选填；填了到期后状态显示「已到期」且不再进日历待排（复用既有 end_date，无新列）

数据库兼容性：
- 只新增 packages.tag 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：
- 无头 Chrome 实拍 5 张页面（日历/触控模式/客户月历/套餐批量/大屏）
- 功能验证 18 项全过（计数口径、标签页签、标签筛选、批量开通与重复跳过、月历翻月、触控开关、按次过期不上日历）
- 119 项验收回归全绿；go vet / go test ./... 通过；版本号 1.7.0

internal/web/handlers_screen.go

@@ -4,6 +4,8 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"net/url"
+	"strings"
 
 	"daili/internal/domain"
 	"daili/internal/store"
@@ -16,6 +18,7 @@ type screenDay struct {
 	IsToday bool
 	IsPast  bool
 	Count   int
+	Done    int
 	Urgent  int
 	Heat    int
 	// Strip 打手色竖条（去重）
@@ -42,17 +45,19 @@ type screenData struct {
 	Refresh     int
 	Version     string
 
-	HeatMode  string // task = 每日待完成；due = 到期
-	HeatTotal int
-	Tabs      []PkgTab
-	PkgID     int64
-	HasTabs   bool
-	Theme     string
+	HeatMode    string // task = 每日待完成；due = 到期
+	Tag         string
+	HeatTotal   int
+	Tabs        []PkgTab
+	PkgID       int64
+	HasTabs     bool
+	FilterQuery string
+	Theme       string
 }
 
 // screenCalSubs 读取大屏日历区间内的订阅，并带上暂停/打卡/加急。
-func (s *Server) screenCalSubs(from, to string, pkgID int64) ([]calSub, map[int64]map[string]store.Checkin, map[int64]map[string]bool, error) {
-	subs, pauses, checkins, urgent, err := s.loadCalendarSubs(from, to, pkgID)
+func (s *Server) screenCalSubs(from, to string, pkgID int64, tag string) ([]calSub, map[int64]map[string]store.Checkin, map[int64]map[string]bool, error) {
+	subs, pauses, checkins, urgent, err := s.loadCalendarSubs(from, to, pkgID, tag)
 	if err != nil {
 		return nil, nil, nil, err
 	}
@@ -74,6 +79,7 @@ func (s *Server) handleScreen(w http.ResponseWriter, r *http.Request) {
 	today := domain.Today()
 	warn := s.warnDays()
 	pkgID := int64(s.queryInt(r, "pkg", 0))
+	tag := strings.TrimSpace(r.URL.Query().Get("tag"))
 	heatMode := r.URL.Query().Get("heat")
 	if heatMode != "due" {
 		heatMode = "task"
@@ -85,16 +91,18 @@ func (s *Server) handleScreen(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	data := &screenData{
-		Stats:      stats,
-		MonthTitle: fmt.Sprintf("%d 年 %d 月", today.Year(), int(today.Month())),
-		Year:       today.Year(),
-		Month:      int(today.Month()),
-		Weekdays:   []string{"一", "二", "三", "四", "五", "六", "日"},
-		Top:        subViews(stats.Top, today, warn),
-		Refresh:    s.screenRefresh(),
-		Version:    s.cfg.Version,
-		HeatMode:   heatMode,
-		PkgID:      pkgID,
+		Stats:       stats,
+		MonthTitle:  fmt.Sprintf("%d 年 %d 月", today.Year(), int(today.Month())),
+		Year:        today.Year(),
+		Month:       int(today.Month()),
+		Weekdays:    []string{"一", "二", "三", "四", "五", "六", "日"},
+		Top:         subViews(stats.Top, today, warn),
+		Refresh:     s.screenRefresh(),
+		Version:     s.cfg.Version,
+		HeatMode:    heatMode,
+		PkgID:       pkgID,
+		Tag:         tag,
+		FilterQuery: "pkg=" + itoa(pkgID),
 	}
 
 	// 今日到期（可按套餐过滤）
@@ -114,7 +122,7 @@ func (s *Server) handleScreen(w http.ResponseWriter, r *http.Request) {
 	weeks := (domain.WeekdayIndex(monthStart) + monthEnd.Day() + 6) / 7
 	gridEnd := domain.AddDays(gridStart, weeks*7-1)
 
-	list, checkins, urgent, err := s.screenCalSubs(domain.Date(gridStart), domain.Date(gridEnd), pkgID)
+	list, checkins, urgent, err := s.screenCalSubs(domain.Date(gridStart), domain.Date(gridEnd), pkgID, tag)
 	if err != nil {
 		http.Error(w, "读取大屏日历失败", http.StatusInternalServerError)
 		return
@@ -125,7 +133,7 @@ func (s *Server) handleScreen(w http.ResponseWriter, r *http.Request) {
 		for di := 0; di < 7; di++ {
 			d := domain.AddDays(gridStart, wi*7+di)
 			ds := domain.Date(d)
-			count, urgentN := 0, 0
+			count, doneN, urgentN := 0, 0, 0
 			strip := []string{}
 			seenColor := map[string]bool{}
 			for _, cs := range list {
@@ -140,7 +148,8 @@ func (s *Server) handleScreen(w http.ResponseWriter, r *http.Request) {
 				}
 				ci, has := checkins[cs.sub.ID][ds]
 				if has && (ci.Status == "done" || ci.Status == "skipped") {
-					continue // “待完成”只统计还没处理的
+					doneN++
+					continue // “待完成”热力只统计还没处理的
 				}
 				count++
 				if urgent[cs.sub.ID][ds] {
@@ -164,7 +173,8 @@ func (s *Server) handleScreen(w http.ResponseWriter, r *http.Request) {
 				InMonth: d.Month() == today.Month(),
 				IsToday: ds == domain.Date(today),
 				IsPast:  d.Before(today),
-				Count:   count,
+				Count:   count + doneN,
+				Done:    doneN,
 				Urgent:  urgentN,
 				Heat:    heatLevel(count),
 				Strip:   strip,
@@ -174,7 +184,7 @@ func (s *Server) handleScreen(w http.ResponseWriter, r *http.Request) {
 	}
 
 	// 今日待打（加急置顶）
-	rows, err := s.pendingTasks(domain.Date(today), nil, pkgID)
+	rows, err := s.pendingTasks(domain.Date(today), nil, pkgID, tag)
 	if err == nil {
 		for _, row := range rows {
 			if row.Done || row.Skipped {
@@ -198,18 +208,27 @@ func (s *Server) handleScreen(w http.ResponseWriter, r *http.Request) {
 		data.Recent = adj
 	}
 
-	// 套餐标签
+	// 页签：按标签合并 + 独立显示另开
 	pkgs, _ := s.db.ListPackages(true)
-	for _, p := range pkgs {
-		if p.CalendarSeparate && !p.Archived {
-			if !data.HasTabs {
-				data.HasTabs = true
-				data.Tabs = append(data.Tabs, PkgTab{ID: 0, Name: "全部", Color: "#8A8F98"})
-			}
-			data.Tabs = append(data.Tabs, PkgTab{ID: p.ID, Name: p.Name, Color: p.Color})
+	data.Tabs, data.HasTabs = buildCalendarTabs(pkgs, nil, 0)
+	for i := range data.Tabs {
+		t := &data.Tabs[i]
+		href := "/screen?heat=" + heatMode
+		if t.Tag != "" {
+			href += "&tag=" + url.QueryEscape(t.Tag)
+			t.Active = t.Tag == tag
+		} else if t.ID > 0 {
+			href += "&pkg=" + itoa(t.ID)
+			t.Active = t.ID == pkgID
+		} else {
+			t.Active = tag == "" && pkgID == 0
 		}
+		t.Href = href
 	}
 
+	if tag != "" {
+		data.FilterQuery = "tag=" + url.QueryEscape(tag)
+	}
 	data.Theme = themeFromRequest(r)
 	p := s.newPage(r, "大屏", "screen")
 	p.Theme = data.Theme
@@ -225,7 +244,7 @@ func (s *Server) handleScreenDay(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	pkgID := int64(s.queryInt(r, "pkg", 0))
-	rows, err := s.pendingTasks(date, nil, pkgID)
+	rows, err := s.pendingTasks(date, nil, pkgID, strings.TrimSpace(r.URL.Query().Get("tag")))
 	if err != nil {
 		http.Error(w, "读取失败", http.StatusInternalServerError)
 		return