fix: 三个 P2 小修(榜单离线兜底/同天连胜文案/热力图日期解析)

- leaderboard.js _applyLocal 离线兜底补 subText(N次),与云端路径对齐
- timer.js _detectCelebrationLevel 增加 lastIsToday 判断,修复同天二次训练连胜文案虚高 1 天
- calendar-heatmap.js 用 util.dateOnly 归一化后再取'日',修复脆弱的 split 解析

components/calendar-heatmap/calendar-heatmap.js

@@ -59,7 +59,9 @@ Component({
       const recordMap = {}
       if (records && records.length) {
         records.forEach((r) => {
-          const d = parseInt(r.date.split('-')[2])
+          // 先用 util.dateOnly 归一化日期(兼容 "YYYY-MM-DD HH:MM:SS" / ISO 等),
+          // 再稳定地取出「日」,避免直接 split('-')[2] 取到 "DD HH:MM:SS" 靠 parseInt 侥幸解析的脆弱写法
+          const d = parseInt(util.dateOnly(r.date).split('-')[2], 10)
           recordMap[d] = (recordMap[d] || 0) + r.duration
         })
       }

pages/leaderboard/leaderboard.js

@@ -205,7 +205,8 @@ Page({
     if (duration > 0) {
       const entry = {
         rank: 1, openid: 'local', name: localName, nickname: profile.nickname || '',
-        duration, durationText: util.formatDuration(duration), sessions
+        duration, durationText: util.formatDuration(duration), sessions,
+        subText: `${sessions}次`
       }
       this.setData({ rankedList: [entry], myEntry: { ...entry, isMe: true }, loading: false, refreshing: false, empty: false })
     } else {

pages/timer/timer.js

@@ -244,7 +244,14 @@ Page({
   _detectCelebrationLevel(elapsed) {
     const stats = storage.getTotalStats()
     const streak = storage.getStreak()
-    const nextStreak = (streak.lastDate && streak.count >= 1) ? streak.count + 1 : 1
+    // 本函数运行在保存记录之前(pre-save state)。updateStreak 对「同一天再次训练」
+    // 会直接 return、不递增连胜数;所以若 streak.lastDate 已是今天,nextStreak 应取
+    // 当前 count 而非 count+1,否则庆祝文案会比真实连胜多 1 天。
+    const todayOnly = storage.getToday().substring(0, 10)
+    const lastIsToday = !!(streak.lastDate && streak.lastDate.substring(0, 10) === todayOnly)
+    const nextStreak = lastIsToday
+      ? (streak.count || 1)
+      : ((streak.lastDate && streak.count >= 1) ? streak.count + 1 : 1)
 
     if (stats.totalSessions === 0) {
       return { level: 'first', message: '第一次训练!坚持就是胜利' }