docs(readme): MSI install path + Windows Service management #24

Job	Run time
Publish Docker image (multi-arch → GHCR)	1h 4m 17s
Build x86_64-unknown-linux-gnu	2m 58s
Build x86_64-pc-windows-msvc	7m 4s
Build x86_64-apple-darwin	2m 19s
Build aarch64-apple-darwin	2m 15s
Build aarch64-unknown-linux-gnu	2m 53s
Create Release	0s
	1h 21m 46s

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