feat: add single-port production docker topology

docker/edge.Dockerfile

@@ -0,0 +1,15 @@
+FROM node:24.18.0-bookworm-slim AS frontend-build
+RUN corepack enable && corepack prepare pnpm@10.15.0 --activate
+WORKDIR /app
+COPY package.json pnpm-workspace.yaml pnpm-lock.yaml ./
+COPY frontend/package.json frontend/package.json
+COPY backend/package.json backend/package.json
+RUN pnpm install --frozen-lockfile
+COPY frontend frontend
+RUN pnpm --filter frontend build
+
+FROM nginx:1.29.8-alpine
+COPY docker/edge/nginx.conf /etc/nginx/nginx.conf
+COPY docker/edge/default.conf.template /etc/nginx/templates/default.conf.template
+COPY --from=frontend-build /app/frontend/dist/frontend/browser /usr/share/nginx/html
+EXPOSE 443