feat: add `astro dev local` for Docker-free local development#2012

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jlaneve wants to merge 13 commits intomainfrom

feat/standalone-mode

Commits on Feb 17, 2026

Drop Airflow 2 support, fetch constraints from GCS, implement 2-step install

jlaneve
and
claude
committed

Commits on Feb 19, 2026

feat: standalone mode improvements - CDN URLs, admin:admin creds, clean project root

jlaneve
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claude
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Merge origin/main into feat/standalone-mode

jlaneve
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claude
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rename: astro dev standalone → astro dev local

jlaneve
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claude
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fix: update startup messages to reference astro dev local

jlaneve
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claude
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rename: standalone.go → local.go, standalone_test.go → local_test.go

jlaneve
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claude
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fix: resolve golangci-lint failures (gofumpt, gosec, dogsled)

jlaneve
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claude
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feat: extract Python version from Dockerfile image tag

jlaneve
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claude
committed