680630050b
- Wrap HandleMsgEventAsync / HandleAliveEventAsync bodies in try/catch(Exception) logging at Error, eliminating async-void unobserved-exception crash risk (Issue 1). - Replace deterministic seq-based key generator with RandomNumberGenerator.GetInt32 so each EncodeAndSendAsync call uses a fresh random key (Issue 2). - Add `when Phase == …` guards to InitNetwork / Loaded / Swap cases in ComputeResponses; add default arm that logs+drops out-of-order URIs (Issue 3). - Widen SendSioAckAsync arg from int to long; drop (int) cast at call site; boundary cast to int is now checked() for defensive overflow detection (Issue 4). - Update RunAsync doc comment (was stale Task-13 placeholder) (Issue 5). - Add Kill and out-of-order-Swap-before-Loaded tests (Issue 6). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>