feat: k2pow service #1234

Job	Run time
coverage	2m 54s
Rustfmt	19s
clippy	31s
Check	25s
Test Suite (self-hosted, linux, x64, intel)	2m 26s
Test Suite (ubuntu-latest-arm-8-cores, --cfg=aes_armv8)	6m 54s
Test Suite (self-hosted, macos, arm64, --cfg=aes_armv8)	2m 56s
Test Suite (macos-13, stable)	3m 29s
Test Suite (windows-2019)	5m 5s
Build library (self-hosted, linux, x64, intel, libpost.so, libpost.a, linux)	1m 34s
Build library (ubuntu-latest-arm-8-cores, libpost.so, libpost.a, --cfg=aes_armv8, linux-arm64)	2m 22s
Build library (self-hosted, macos, arm64, libpost.dylib, libpost.a, --cfg=aes_armv8, macos-m1)	1m 52s
Build library (macos-13, libpost.dylib, libpost.a, macos)	3m 5s
Build library (windows-2019, post.dll, post.lib, windows)	6m 3s
Publish release	0s
	39m 55s

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