Build and smoke-test AutoLibrary as a container

Dockerfile

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+FROM node:24.22.2-bookworm-slim AS frontend-build
+WORKDIR /src/frontend
+COPY frontend/package.json frontend/package-lock.json ./
+RUN npm ci
+COPY frontend/ ./
+RUN npm run build
+
+FROM golang:1.26.1-bookworm AS backend-build
+WORKDIR /src
+ENV CGO_ENABLED=1
+COPY go.mod go.sum ./
+RUN go mod download
+COPY webserver.go ./
+COPY backend/ ./backend/
+COPY cli/ ./cli/
+COPY config/ ./config/
+COPY frontend/frontend.go ./frontend/frontend.go
+COPY frontend/handlers/ ./frontend/handlers/
+COPY utils/ ./utils/
+RUN go test -p 1 -trimpath ./... && go build -p 1 -trimpath -o /out/webserver .
+
+FROM debian:bookworm-slim
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends ca-certificates curl tzdata \
+    && rm -rf /var/lib/apt/lists/*
+WORKDIR /app
+COPY --from=backend-build /out/webserver ./webserver
+COPY --from=frontend-build /src/frontend/dist ./frontend/dist
+COPY backend/templates/ ./backend/templates/
+RUN install -d -o 10001 -g 10001 /app/backend/data /app/logs
+ENV AUTOLIBRARY_HTTP_PORT=3000
+USER 10001:10001
+HEALTHCHECK --interval=10s --timeout=5s --start-period=15s --retries=3 \
+    CMD curl -fsS --noproxy '*' --max-time 2 -o /dev/null "http://127.0.0.1:${AUTOLIBRARY_HTTP_PORT}/" \
+        && curl -fsS --noproxy '*' --max-time 2 -o /dev/null "http://127.0.0.1:${AUTOLIBRARY_HTTP_PORT}/api/health"
+ENTRYPOINT ["/app/webserver"]
+CMD ["start", "--config", "/app/config.json"]