[anime] Add #tsgbot-games support & ChannelLimitedBot integration

[Copilot]

Migrates anime bot to use ChannelLimitedBot pattern for multi-channel support (#sandbox + #tsgbot-games) with progress notifications, following established patterns from #1109, #1122, #1124.

Changes

• TypeScript migration: anime/index.js → index.ts, anime/anison.js → anison.ts
• Bot classes: AnimeQuizBot and AnimeSongQuizBot extend ChannelLimitedBot
  • Override allowedChannels with [CHANNEL_SANDBOX, CHANNEL_GAMES]
  • Implement onWakeWord() with Deferred<string | null> for async quiz initialization
  • Use deleteProgressMessage() on quiz completion
• State management: Migrated closure-based state to class properties with typed interfaces
• Test coverage: Basic initialization test with mocked Google Sheets API

Pattern

class AnimeQuizBot extends ChannelLimitedBot {
  protected override readonly wakeWordRegex = /^(?:アニメ当てクイズ(?:easy|normal|hard|extreme)?|@anime)/u;
  protected override readonly allowedChannels = [process.env.CHANNEL_SANDBOX!, process.env.CHANNEL_GAMES!];
  
  protected override onWakeWord(message: GenericMessageEvent, channel: string): Promise<string | null> {
    const quizMessageDeferred = new Deferred<string | null>();
    // Start quiz, resolve deferred with message timestamp
    return quizMessageDeferred.promise;
  }
}

All existing features preserved: difficulty modes, @anime lookup, achievement unlocks, timed hint system.

Original prompt

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This section details on the original issue you should resolve

<issue_title>[anime] #tsgbot-games 対応 & ChannelLimitedBotクラスを導入</issue_title>
<issue_description>Issue #1099 の対応の一環として、 anime BOTの改修を行う。

Slackの #tsgbot-games チャンネルからの起動に対応できるようにする。また、 lib/channelLimitedBot.ts で定義されたChannelLimitedBotクラスを利用し、起動チャンネルの指定と進行中のゲームの通知を導入する。

改修にあたっては、すでに行われた以下の3つのBOTの同様の修正の修正内容を必ず参照し、これらのスタイルを可能な限り踏襲する。

crossword bot

• Pull Request: crossword: gamesチャンネルからの起動に対応 #1109
• diff: https://github.com/tsg-ut/slackbot/pull/1109.diff
• Main file: wordhero/crossword.ts

character-quiz bot

• Pull Request: character-quiz: ChannelLimetedBotクラスを使用するよう修正 #1122
• diff: https://github.com/tsg-ut/slackbot/pull/1122.diff
• Main file: character-quiz/index.ts

achievement-quiz bot

• Pull Request: Refactor achievement-quiz to use ChannelLimitedBot for #tsgbot-games support #1124
• diff: https://github.com/tsg-ut/slackbot/pull/1124.diff
• Main file: achievement-quiz/index.ts</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes [anime] #tsgbot-games 対応 & ChannelLimitedBotクラスを導入 #1128

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[sonarqubecloud]

Quality Gate failed

Failed conditions
25.0% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube Cloud