- Move sseAbortController/connectionState from module globals into closure for multi-instance safety
- Make start() idempotent by aborting existing connection before creating a new one
- Track connectionPromise and await it on stop() for proper cleanup
- Guard channel API access lazily to prevent crash when integrations are missing
- Add 1MB MAX_SSE_BUFFER_SIZE to prevent unbounded buffer growth
- Log malformed JSON parse errors instead of silently ignoring
- Replace error: any with proper instanceof Error type narrowing
- Remove hardcoded user paths from TESTING.md
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Alex Newman
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