Changelog:
bd177b1 Initialize and reset slot pace stats correctly
6531ee9 Improve unit scheduler debugging
b88d69a Test IPv4 and IPv6 connectivity separately
8bf43e5 Simplify and stabilize unit scheduling
36f06a2 Increase the timeout for initial auth and ping checks
3cbba31 Merge multiple bootstrap transports from same hub
3d11a26 Build hub for arm64
2516038 Avoid only Hub, not full country if connection fails
b8d14d8 Add timeout to DFQ flush
9945b40 Measure less often
faaef4f Fix handling of 1 byte crane messages