refactor: add AI client and unit tests #332

Job	Run time
go-versions / go-versions	5s
Windows, Go 1.23	1m 29s
Windows, Go 1.22	2m 17s
Windows, Go 1.18	44s
Linux, Go 1.18 / Benchmarks	4m 46s
Linux, Go 1.18 / Contract Tests	1m 31s
Linux, Go 1.18 / Unit Tests and Coverage	57s
Linux, Go 1.22 / Benchmarks	4m 39s
Linux, Go 1.22 / Unit Tests and Coverage	1m 1s
Linux, Go 1.22 / Contract Tests	1m 13s
Linux, Go 1.23 / Benchmarks	4m 34s
Linux, Go 1.23 / Contract Tests	1m 22s
Linux, Go 1.23 / Unit Tests and Coverage	58s
	25m 36s

Provide feedback