fix(design): OG-Image + Build-Hash
OG-Image: Next.js 16 / Satori verlangt 'display: flex' (oder contents/none) auf jedem Container-Div mit mehreren Children. Vorher crashte das Image-Rendering mit 'Expected <div> to have explicit display: ...'. Jetzt: alle Container haben display: flex, Image rendert sauber. Build-Hash: Dockerfile hat die ENV-Vars NEXT_PUBLIC_BUILD_HASH/DATE zwar als ENV deklariert, aber sie landeten nicht im finalen Image (ENV in Build-Stage verschwindet im Standalone-Build). Fix: schreibe die Werte in eine .env.production.local vor dem Build — Next.js liest die in der Build-Phase, bakt sie in den Client/Server-Code, und der Standalone-Output enthält sie.
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@@ -18,10 +18,11 @@ ENV NEXT_PUBLIC_SITE_URL=${NEXT_PUBLIC_SITE_URL}
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ENV NEXT_PUBLIC_BUILD_HASH=${NEXT_PUBLIC_BUILD_HASH}
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ENV NEXT_PUBLIC_BUILD_DATE=${NEXT_PUBLIC_BUILD_DATE}
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ENV NEXT_TELEMETRY_DISABLED=1
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RUN COMMIT=$(git rev-parse --short HEAD 2>/dev/null || echo ${NEXT_PUBLIC_BUILD_HASH}) && \
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RUN COMMIT=$(git rev-parse --short HEAD 2>/dev/null || echo "${NEXT_PUBLIC_BUILD_HASH}") && \
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DATE=$(date -u +%Y-%m-%d) && \
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echo "NEXT_PUBLIC_BUILD_HASH=${COMMIT}" >> .env.build && \
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echo "NEXT_PUBLIC_BUILD_DATE=${DATE}" >> .env.build && \
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echo "NEXT_PUBLIC_BUILD_HASH=${COMMIT}" > .env.production.local && \
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echo "NEXT_PUBLIC_BUILD_DATE=${DATE}" >> .env.production.local && \
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cat .env.production.local && \
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npm run build
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FROM node:22.13-bookworm-slim AS runner
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