Add dstack-dev skill for using dev environments #7371

Job	Run time
build-docs / build-docs	1m 34s
compute-version	4s
build-artifacts / frontend-build	12s
build-artifacts / runner-test	1m 0s
build-artifacts / code-lint	40s
build-artifacts / gateway-build	12s
build-artifacts / generate-json-schema	17s
build-artifacts / python-build	21s
build-artifacts / python-test (macos-latest, 3.11)	2m 49s
build-artifacts / python-test (ubuntu-latest, 3.11)	6m 19s
build-artifacts / python-test (macos-latest, 3.13)	2m 31s
build-artifacts / python-test (macos-latest, 3.12)	4m 8s
build-artifacts / python-test (ubuntu-latest, 3.10)	6m 12s
build-artifacts / python-test (ubuntu-latest, 3.12)	6m 6s
build-artifacts / python-test (ubuntu-latest, 3.13)	5m 52s
build-artifacts / python-test (macos-latest, 3.10)	4m 15s
build-artifacts / python-test (windows-latest, 3.10)	2m 11s
build-artifacts / python-test (windows-latest, 3.11)	2m 28s
build-artifacts / python-test (windows-latest, 3.12)	2m 10s
build-artifacts / python-test (windows-latest, 3.13)	2m 15s
build-artifacts / runner-compile (ubuntu-24.04-arm, linux, arm64)	27s
build-artifacts / runner-compile (ubuntu-24.04, linux, amd64)	34s
upload-pre-pypi-artifacts / upload-pre-pypi-artifacts	17s
upload-post-pypi-artifacts / upload-post-pypi-artifacts	15s
	53m 9s

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