Fix RTM reconnection failure after PC resume#120
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When a PC resumes from sleep, the network may not be immediately available, causing ENOTFOUND errors that exhaust the RTM client's built-in retries. The unable_to_rtm_start handler now detects network errors and schedules automatic restarts with exponential backoff (5s, 10s, 20s, ... up to 60s cap) until the connection succeeds. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
ENOTFOUND slack.comエラーで RTM クライアント組み込みのリトライが尽きるとunable_to_rtm_startが発火し、以後接続が復旧しない問題を修正変更内容
isNetworkError()ヘルパーを追加:ENOTFOUND/ECONNREFUSED/ETIMEDOUT/getaddrinfoを含むエラーをネットワークエラーと判定scheduleRtmRestart()を追加: 指数バックオフ（5s → 10s → 20s → 最大 60s）でリトライをスケジュールunable_to_rtm_startハンドラでネットワークエラー検出時に自動リトライを開始authenticatedハンドラでリトライカウンタをリセット動作
Test plan
rtmRestartAttemptsがリセットされることを確認🤖 Generated with Claude Code