Update SKILL.md with authentication details and OpenAI model usage instructions #6393

Job	Run time
build-docs / build-docs	1m 17s
compute-version	2s
build-artifacts / frontend-build	12s
build-artifacts / runner-test (ubuntu-latest)	52s
build-artifacts / runner-test (macos-latest)	57s
build-artifacts / code-lint	48s
build-artifacts / gateway-build	10s
build-artifacts / generate-json-schema	16s
build-artifacts / python-test (ubuntu-latest, 3.9)	5m 22s
build-artifacts / python-test (windows-latest, 3.13)	2m 18s
build-artifacts / python-test (macos-latest, 3.13)	3m 54s
build-artifacts / python-test (macos-latest, 3.9)	3m 56s
build-artifacts / python-test (ubuntu-latest, 3.11)	5m 12s
build-artifacts / python-test (windows-latest, 3.12)	2m 21s
build-artifacts / python-test (ubuntu-latest, 3.10)	5m 26s
build-artifacts / python-test (macos-latest, 3.12)	4m 33s
build-artifacts / python-test (windows-latest, 3.10)	1m 53s
build-artifacts / python-build	18s
build-artifacts / python-test (macos-latest, 3.10)	3m 13s
build-artifacts / python-test (macos-latest, 3.11)	3m 51s
build-artifacts / python-test (ubuntu-latest, 3.12)	5m 0s
build-artifacts / python-test (windows-latest, 3.9)	2m 29s
build-artifacts / python-test (ubuntu-latest, 3.13)	4m 54s
build-artifacts / python-test (windows-latest, 3.11)	2m 14s
build-artifacts / runner-compile (ubuntu-24.04-arm, linux, arm64)	22s
build-artifacts / runner-compile (ubuntu-24.04, linux, amd64)	34s
upload-pre-pypi-artifacts / upload-pre-pypi-artifacts	18s
upload-post-pypi-artifacts / upload-post-pypi-artifacts	20s
	1h 3m 2s

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