Refactored history storage from module-level Map to instance-level
persistedHistory field. This fixes:
- Memory leak: sessions were never cleaned up from global Map
- Shared state: unrelated sessions could collide
- Restart handling: history now always loads from disk on resume
Changes:
- Removed SESSION_HISTORY Map (was at line 118)
- Constructor now sets historyPending=true for resume instead of
looking up from global Map
- connect() always loads from disk when resuming
- recordHistory() appends to this.persistedHistory instead of Map
- flushPendingHistory() appends to this.persistedHistory instead of Map
- loadPersistedHistoryFromDisk() no longer populates global Map
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
