docs(tally): add tally to /help + website docs; translate to all locales (#1342)

- Add a 'Voice channel tally' group to /help with the three commands.
- Add a Voice Channel Tally section to the website docs (docs.ejs).
- Translate the commands.tally bot strings + help_group_tally into all 10
  other bot locales, and the new docs.* web strings into all 10 web locales.
- Fix stale need_one_input string (ign/squadron_short -> username/squadron).

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

web/locales/zh-CN.json

@@ -267,7 +267,12 @@
     "tierOverviewDesc": "该项目的详细说明。",
     "tierStandardLine": "$2.99 — up to 10 squadrons each for Logs and 点数, no wildcard 支持.",
     "tierProLine": "up to 25 squadrons each for Logs and 点数, plus wildcard (`*` / `all` / `everything`) 支持.",
-    "tierMaxLine": "无限中队、通配符，以及新功能抢先体验。"
+    "tierMaxLine": "无限中队、通配符，以及新功能抢先体验。",
+    "voiceChannelTally": "语音频道追踪",
+    "tallyIntro": "直接在你的 Discord 语音频道状态中实时追踪 SQB 比分。比赛结束后，机器人会将频道状态更新为如 2W-1L：胜 对阵 ENEMY 的累计记录。这是高级版功能，你必须连接到该语音频道。",
+    "tallyClaimDesc": "在你当前的语音频道开始追踪某位玩家或战队。请提供用户名或战队（不可同时提供）。状态从 0W-0L 开始，并在相关比赛结束时更新。",
+    "tallyTransferDesc": "将当前追踪切换到另一名玩家，并保留现有的胜负记录。",
+    "tallyClearDesc": "清除你当前语音频道的追踪并重置其状态。追踪还会在闲置 1 小时后，或所有人离开该频道后自动清除。"
   },
   "leaderboards": {
     "title": "排行榜",