* Swift Testing: `PrivateChatE2ETests` + minor refactor
* Swift Testing: `PublicChatE2ETests`
* Swift Testing: `FragmentationTests`
* Fix MockBLEService init to accept PeerID and remove _testRegister call
* Add peerID property to MockBLEService and fix ttlDecrement test
* Remove duplicate peerID property and fix type comparisons
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Co-authored-by: jack <jackjackbits@users.noreply.github.com>
