Move dockerfile

docker/Dockerfile

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+FROM cgr.dev/chainguard/node:latest-dev AS builder
+
+WORKDIR /app
+
+RUN corepack enable && corepack prepare pnpm@10.25.0 --activate
+
+COPY --chown=node:node package.json pnpm-lock.yaml ./
+RUN pnpm install --frozen-lockfile
+
+RUN pnpm add -D @sveltejs/adapter-node@latest
+
+COPY --chown=node:node . .
+COPY --chown=node:node svelte.config.docker.js svelte.config.js
+
+RUN pnpm run build
+
+FROM cgr.dev/chainguard/node:latest AS runtime
+
+WORKDIR /app
+
+RUN corepack enable && corepack prepare pnpm@10.25.0 --activate
+
+COPY --from=builder --chown=node:node /app/package.json /app/pnpm-lock.yaml ./
+RUN pnpm install --prod --frozen-lockfile && \
+    pnpm store prune
+
+COPY --from=builder --chown=node:node /app/build ./build
+COPY --from=builder --chown=node:node /app/package.json ./
+
+EXPOSE 3000
+
+ENV NODE_ENV=production
+ENV PORT=3000
+ENV HOST=0.0.0.0
+
+CMD ["build/index.js"]
+