[HACK] AI API keys: Extract content gen prompts and add test coverage#16138

iamgabrielma wants to merge 4 commits intoiamgabrielma-hack/allow-merchant-ai-api-key-register-new-keychain-valueswoocommerce/woocommerce-ios:iamgabrielma-hack/allow-merchant-ai-api-key-register-new-keychain-valuesfrom

iamgabrielma-hack/allow-merchant-ai-api-key-update-gen-remotewoocommerce/woocommerce-ios:iamgabrielma-hack/allow-merchant-ai-api-key-update-gen-remoteCopy head branch name to clipboard