PPHA-494: use chainguard hardened images#204

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Themitchell wants to merge 3 commits intomainfrom

PPHA-494-use-chainguard-hardened-images

Commits on Jan 7, 2026

PPHA-494: Move development docker to its own Dockerfile
Themitchell
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PPHA-494: Create chainguard image for prod use
Themitchell
committed
PPHA-494: Use Dockerfile.dev in development as chainguard cant supoort playwright
Themitchell
committed