feedback7 stats: a match left right away stays in the history but does not count; bounded storage, corrupt-data handling, the page reworked as 干员调配-style tabs, the settlement re-view without the app store (PR #323 by @2321Robin, owner's decision of 2026-10-08); golden: unchanged

Counting rule (ui/stats.js countsTowardStats, the owner's decision of 2026-10-08: do not count the matches entered and left
right away, but keep them in the history): a settled match (m.result arrived) always counts; a match given up (放弃模拟)
counts once at least one of the player's battles had finished — a round cleared (the server's own rule, platform.js
_quit: leaving while round k runs has passed k - 1, in its settlement k) or already eliminated. Anything earlier is
history only: marked 中途退出 and 不计入统计, dimmed, listed in 对局记录, left out of every aggregate (games, wins, win
rate, strategy table, titles, rounds, time, combat totals); 总览 says how many were left out.
- A leaver gets no m.result, so the page records the match itself: quitMatch (放弃模拟) → recordQuit builds an
  `end: 'quit'` record from the app state and a tracker (observeMatch, installed in main.js) that remembers when the page
  first saw the match and the last round the player was seen alive in. No record for a spectator seat, a match with its
  settlement already there, a match the page never saw; matches the server ended and closed tabs are not recorded.

Defects of PR #323 as submitted, reproduced (scratchpad/w7-stats-notes/repro-pr-bugs.mjs, loads-check*.mjs) and fixed:
- the title screen loaded all 16 game data files (5.3 MB) at boot: <StatsHost/> called useGameData() at mount; now the
  host renders nothing until opened, the overview reads config / bands / assets and the settlement re-view loads the rest
  when opened (the title screen loads the same 3 files as before);
- importing a file put the list oldest first (the page shows the first 20 as the newest and the cap would drop the
  newest); the list is newest first everywhere, also when loaded from storage;
- recordResult wrote over the envelope of a NEWER build (a downgrade, against the PR's own rule); it refuses now, as
  saveStats does;
- 1000 four-player records are ~7.2 M characters (the PR's ~1.5 kB/record is a solo match) against a ~2.5 M-character
  quota: MAX_RECORDS 1000 stays, plus a 800 000-character budget (the oldest go first), and only the newest 30 records
  keep their rows (lineup, bonds, teammates' names; the replay needs them) — older ones are compacted to the player's own
  summary row (~620 characters), a refused write retries with half the history; unknown fields and oversized values are
  dropped (a strict schema), import files are bounded (8 MB);
- the re-view clobbered the app store (match.public / match.result, the route, the music); ResultScreen is split into
  ResultScreen (the store) and ResultView (props: result, myId, back label), so the stats page renders a stored match
  itself; a 自选 pick and a 补位 stand-in were dropped from the stored lineup (the replayed card drew the plain
  operator); DIFFICULTY_NAMES were not translated; a band cell was a display:flex <td>; the overlay stayed open when a
  co-op match started; the 清空 two-step blink was replaced by the shared confirm dialog.
- Corrupt storage: unreadable data is moved to sp.pref.stats.damaged and the page says so; damaged rows are dropped and
  counted; duplicates, an oversized or unsorted list are repaired on load; a pre-`end` (PR-era) envelope reads as settled.

UI: a full-screen overlay in the grammar of 干员调配 (top bar with 返回 / four tabs 总览 · 策略 · 战斗累计 · 对局记录 /
导出 导入 清空, a note line saying the data stays in this browser and that teammates' names are stored too), text sizes
with max(.xxrem, N px) for phones in landscape, a 50-row history page with 显示更多, a pass-rate bar, a per-difficulty
table in order; the entries use a new `chart` icon (not the ping bars), the title screen's sits beside the language menu
(the connection row has no room: it squeezed the gear and wrapped the status text), the lobby / room buttons show the
icon alone below 700 px (the room's title ran under the label at 640 px). docs/PLAYING.md §12, README row; 41 + 25 UI
strings in en / ja / ko / zh-TW (the PR's four unused ones removed).

Tests: test/ui/stats.test.js 44 / 44 (counting rule per phase, quit records, bounds, corrupt / old / newer storage,
import order, aggregation, the replay payload); test/ui/stats.e2e.test.js (opt-in SP_E2E=1, real server, headless Chrome:
seeded history on 1920×1080 and 844×390, the re-view, export / import / clear, corrupt and newer storage, and the real
flows: a solo match given up in the briefing is history only, one given up after round 1 counts, a settled match is
recorded once and not again after a reload) 6 / 6; lint 0 errors, i18n extract 0 / check --all --strict clean,
check:imports, typecheck, docs and version tests, golden unchanged.

docs/PLAYING.md

@@ -170,3 +170,18 @@
 刷新、冻结、升级、撤退、出售和准备只在休整期有效，撤退 / 出售要先点选一名干员。方向轮盘（方向键预览、`Enter` 确认、`Esc` 取消）、「玩法说明」和「干员调配」的翻页键是这些界面自己的按键，不能修改。
 
 **修改快捷键**：标题画面右上角或对局左下角的「设置」→「快捷键」。点一下要改的按键（只用键盘时按 Tab 移到它上面再按 Enter），出现「按下新按键…」后按新的键；按 `Esc` 取消，设置窗口不会关闭。可以用字母、数字、空格、标点符号键和 Delete / Insert / Home / End / PageUp / PageDown；`Esc`、`Tab`、`Enter`、方向键和 F1–F12 留给界面使用，也不能搭配 Ctrl / Alt / ⌘。新按键已被另一个快捷键使用时两者互换，列表下方会写明（例如把「撤退选中干员」改成 `X`，「出售选中干员」就换成原来的 `Q`）。「恢复默认」改回上表的按键。修改立即生效，商店栏、准备按钮和单位底部「撤退 / 出售」按钮上显示的按键也跟着变；设置和音量等一起保存在当前浏览器里（换浏览器或清除网站数据后回到默认）。按键按键帽上印的字符识别（AZERTY 等键盘按印着的字母），俄文等非拉丁布局按键位识别。手机等纯触屏设备要连接键盘才能用快捷键，设置里的快捷键列表默认折叠。
+
+## 12. 统计（本机）
+
+标题画面右上角、大厅和等待室顶栏的「统计」打开**统计数据**页：这台设备上你参与过的对局的记录。记录只存在这个浏览器里（`localStorage`），不会上传到服务器，服务器也不保存任何对局历史；换浏览器、换设备或清除网站数据后，记录不会跟过去。要搬家，用页面顶部的「导出」（一个 JSON 文件）和另一台设备上的「导入」（按记录合并，重复的跳过）。
+
+| 页签 | 内容 |
+|---|---|
+| 总览 | 总局数、胜场、胜率、到达 / 通关隐秘核心的次数、最远回合、累计时长；各难度一行；六种结算称号各拿过几次 |
+| 策略 | 每个策略用了几局、通过几局（你自己撑到最后、队伍获胜才算通过）和通过率 |
+| 战斗累计 | 击倒敌人、领袖伤害、造成伤害等结算页上的数字，在打到结算的对局里累加 |
+| 对局记录 | 每局一行，最新的在上面（一次显示 50 行，「显示更多」继续）；点一行回看那一局的结算页（最新的 30 局可以回看，更早的只留汇总，点不开） |
+
+**什么算一局**：打到结算页的对局，以及中途退出（「放弃模拟」）前至少清完 1 个回合的对局，计入以上所有统计——和官方一样，中途退出按淘汰处理，通过的回合数就是退出时已经通过的回合。**进去就退、没清完第一个回合就退的对局不计入统计**（不算一局，不影响胜率和策略通过率），但会留在「对局记录」里，标着「中途退出」和「不计入统计」。已经被淘汰后再退出的对局算（你输了这一局）。下面这些不会记录：观战；被服务器结束的对局（服务器重启、同盟解散）；关掉页面后没有再回来的对局。
+
+**存储与隐私**：最多保留最近 1000 局，所有记录加起来不超过约 0.8 MB（超出时最旧的先丢）。只有最新的 30 局保留完整的阵容、盟约和队友信息，更早的压缩成你自己的一行汇总。同盟对局的记录里有**队友的代号**，它们保存在本机，也会出现在你导出的文件里；不会发给任何人。想删掉就点「清空」（会先确认），或清除这个网站的数据。读不出来的存档（损坏的数据）会另存为备份并重新开始记录，不会让页面出错；由更新版本导出的文件会被拒绝导入，也不会被旧版本覆盖。