add cached moonbit ai task runtime and daemon-backed execution #24

Job	Run time
build (aarch64-apple-darwin, macos-latest)	5m 57s
build (x86_64-apple-darwin, macos-latest)	4m 47s
build (aarch64-unknown-linux-gnu, ubuntu-latest)	4m 17s
build (x86_64-unknown-linux-gnu, ubuntu-latest)	3m 34s
release	8s
	18m 43s

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