Verda: make startup script and SSH key lifecycle per-instance with reliable cleanup #6772

Job	Run time
compute-version	2s
build-docs / build-docs	1m 26s
build-artifacts / gateway-build	16s
build-artifacts / runner-test (macos-latest)	52s
build-artifacts / code-lint	51s
build-artifacts / runner-test (ubuntu-latest)	1m 9s
build-artifacts / frontend-build	8s
build-artifacts / generate-json-schema	22s
build-artifacts / python-build	19s
build-artifacts / python-test (macos-latest, 3.10)	3m 6s
build-artifacts / python-test (ubuntu-latest, 3.9)	3m 23s
build-artifacts / python-test (windows-latest, 3.12)	2m 7s
build-artifacts / python-test (macos-latest, 3.11)	3m 20s
build-artifacts / python-test (windows-latest, 3.10)	1m 59s
build-artifacts / python-test (ubuntu-latest, 3.10)	3m 23s
build-artifacts / python-test (ubuntu-latest, 3.11)	3m 23s
build-artifacts / python-test (macos-latest, 3.13)	3m 15s
build-artifacts / python-test (macos-latest, 3.9)	3m 30s
build-artifacts / python-test (windows-latest, 3.9)	2m 46s
build-artifacts / python-test (macos-latest, 3.12)	3m 31s
build-artifacts / python-test (ubuntu-latest, 3.12)	3m 24s
build-artifacts / python-test (windows-latest, 3.13)	2m 11s
build-artifacts / python-test (ubuntu-latest, 3.13)	3m 23s
build-artifacts / python-test (windows-latest, 3.11)	2m 41s
build-artifacts / runner-compile (ubuntu-24.04-arm, linux, arm64)	34s
build-artifacts / runner-compile (ubuntu-24.04, linux, amd64)	27s
upload-pre-pypi-artifacts	0s
upload-post-pypi-artifacts	0s
	51m 48s

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