Docker support, backend SPA mode

Dockerfile

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+# syntax=docker/dockerfile:1.7-labs
+FROM node:lts AS build
+WORKDIR /app
+
+RUN apt-get update
+RUN apt-get install --yes build-essential
+RUN apt-get install --yes libxi-dev
+RUN apt-get install --yes python-is-python3
+
+COPY --parents package.json pnpm-lock.yaml pnpm-workspace.yaml packages/*/package.json .
+RUN npm install --global pnpm
+RUN pnpm install --frozen-lockfile
+
+COPY . .
+RUN pnpm exec tsc --build
+RUN pnpm --filter frontend exec vite build
+
+FROM oven/bun:1
+WORKDIR /usr/src/app
+
+COPY --from=build /app .
+ENTRYPOINT ["bun", "run", "packages/backend/src/app.ts"]