add AI agent instructions #834

Job	Run time
workflow tests - python 3.10	43s
lint with pre-commit	19s
workflow tests - python 3.14	8m 3s
python 3.6 compatibility (deploy/bootstrap)	27s
test mache - python 3.12	4m 58s
test mache - python 3.14	38s
test mache - python 3.13	38s
test mache - python 3.11	37s
test mache - python 3.10	37s
	17m 0s

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