Add an AI and Autonomous code contribution policy. #1290

Job	Run time
Pre-commit Checks / Pre-commit Checks	16s
Verify Briefcase Template	0s
Pre-commit	0s
Create Package	0s
Verify Android	0s
Verify macOS	0s
Verify Project	-1s
Verify Web	-1s
Verify Linux	-1s
Verify Windows	-1s
Verify Docs Build	-1s
Verify Flatpak	-1s
Install Briefcase	-1s
Verify iOS	-1s
Verify Briefcase	-1s
	7s

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