apps/chanora_flutter/macos/Runner/Release.entitlements: add com.apple.security.network.server = true. The macOS App Sandbox treats every UDP bind() — including the ephemeral 0.0.0.0:0 that tsclientlib uses for outbound TS3 traffic — as a server operation. Without this entitlement UdpSocket::bind fails with EPERM and the TS3 connect never starts. Debug builds already had this entitlement (needed for flutter run hot-reload); release builds were missing it.
apps/chanora_flutter/macos/Runner/DebugProfile.entitlements: expand the existing network.server comment to document the dual rationale (flutter hot-reload + outbound UDP bind), so the entitlement's purpose is clear without spelunking through tsclientlib.
Edison Jwa
1cf1a8f5a6