Prepare production deployment

Dockerfile

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+# syntax=docker/dockerfile:1.7
+
+ARG NODE_IMAGE=node:24.18.0-alpine@sha256:a0b9bf06e4e6193cf7a0f58816cc935ff8c2a908f81e6f1a95432d679c54fbfd
+
+FROM ${NODE_IMAGE} AS base
+WORKDIR /app
+ENV PNPM_HOME=/pnpm
+ENV PATH=${PNPM_HOME}:${PATH}
+RUN corepack enable
+
+FROM base AS deps
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml .npmrc ./
+RUN pnpm install --frozen-lockfile
+
+FROM deps AS quality
+COPY . .
+RUN pnpm format:check
+RUN pnpm lint
+RUN pnpm check
+
+FROM quality AS build
+RUN pnpm build
+
+FROM base AS prod-deps
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml .npmrc ./
+RUN pnpm install --frozen-lockfile --prod --ignore-scripts
+
+FROM ${NODE_IMAGE} AS runtime
+WORKDIR /app
+
+ARG BUILD_DATE
+ARG VCS_REF
+
+LABEL org.opencontainers.image.title="Flamy Trade"
+LABEL org.opencontainers.image.description="SvelteKit frontend for trade.flamy.studio"
+LABEL org.opencontainers.image.created="${BUILD_DATE}"
+LABEL org.opencontainers.image.revision="${VCS_REF}"
+
+ENV NODE_ENV=production
+ENV HOST=0.0.0.0
+ENV PORT=3000
+ENV ORIGIN=https://trade.flamy.studio
+ENV BODY_SIZE_LIMIT=1M
+ENV SHUTDOWN_TIMEOUT=15
+
+COPY --from=prod-deps --chown=node:node /app/node_modules ./node_modules
+COPY --from=build --chown=node:node /app/build ./build
+COPY --from=build --chown=node:node /app/package.json ./package.json
+
+USER node
+EXPOSE 3000
+CMD ["node", "build/index.js"]