refactor: add AI client and unit tests (#207) #343

Job	Run time
go-versions / go-versions	10s
Windows, Go 1.23	2m 50s
Windows, Go 1.22	2m 25s
Windows, Go 1.18	47s
Linux, Go 1.18 / Unit Tests and Coverage	56s
Linux, Go 1.18 / Benchmarks	4m 43s
Linux, Go 1.18 / Contract Tests	1m 31s
Linux, Go 1.22 / Benchmarks	4m 40s
Linux, Go 1.22 / Contract Tests	1m 26s
Linux, Go 1.22 / Unit Tests and Coverage	52s
Linux, Go 1.23 / Contract Tests	1m 23s
Linux, Go 1.23 / Unit Tests and Coverage	1m 7s
Linux, Go 1.23 / Benchmarks	4m 36s
	27m 26s

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