feat: add support for default UI language configuration and non-root Dockerfile

Dockerfile.nonroot

@@ -0,0 +1,70 @@
+# Non-root Dockerfile — supports PUID/PGID environment variables (LSIO-style)
+# Usage: docker build -f Dockerfile.nonroot -t bentopdf .
+#        docker run -d -p 3000:8080 -e PUID=1000 -e PGID=1000 bentopdf
+
+ARG BASE_URL=
+
+# Build stage (identical to main Dockerfile)
+FROM public.ecr.aws/docker/library/node:20-alpine AS builder
+WORKDIR /app
+COPY package*.json ./
+COPY vendor ./vendor
+ENV HUSKY=0
+RUN npm config set fetch-retries 5 && \
+    npm config set fetch-retry-mintimeout 60000 && \
+    npm config set fetch-retry-maxtimeout 300000 && \
+    npm config set fetch-timeout 600000 && \
+    npm ci
+COPY . .
+
+ARG SIMPLE_MODE=false
+ENV SIMPLE_MODE=$SIMPLE_MODE
+ARG COMPRESSION_MODE=all
+ENV COMPRESSION_MODE=$COMPRESSION_MODE
+
+ARG BASE_URL
+ENV BASE_URL=$BASE_URL
+
+ARG VITE_WASM_PYMUPDF_URL
+ARG VITE_WASM_GS_URL
+ARG VITE_WASM_CPDF_URL
+ENV VITE_WASM_PYMUPDF_URL=$VITE_WASM_PYMUPDF_URL
+ENV VITE_WASM_GS_URL=$VITE_WASM_GS_URL
+ENV VITE_WASM_CPDF_URL=$VITE_WASM_CPDF_URL
+
+# Default UI language (e.g. en, fr, de, es, zh, ar)
+ARG VITE_DEFAULT_LANGUAGE
+ENV VITE_DEFAULT_LANGUAGE=$VITE_DEFAULT_LANGUAGE
+
+ENV NODE_OPTIONS="--max-old-space-size=3072"
+
+RUN npm run build:with-docs
+
+# Production stage — uses standard nginx (starts as root, drops to PUID/PGID)
+FROM nginx:stable-alpine-slim
+
+LABEL org.opencontainers.image.source="https://github.com/alam00000/bentopdf"
+LABEL org.opencontainers.image.url="https://github.com/alam00000/bentopdf"
+
+ARG BASE_URL
+
+ENV PUID=1000
+ENV PGID=1000
+ENV DISABLE_IPV6=false
+
+RUN apk add --no-cache su-exec
+
+COPY --from=builder /app/dist /usr/share/nginx/html${BASE_URL%/}
+COPY nginx.conf /etc/nginx/nginx.conf
+COPY --chmod=755 entrypoint.sh /entrypoint.sh
+
+RUN mkdir -p /etc/nginx/tmp \
+             /var/cache/nginx/client_temp \
+             /var/cache/nginx/proxy_temp \
+             /var/cache/nginx/fastcgi_temp \
+             /var/cache/nginx/uwsgi_temp \
+             /var/cache/nginx/scgi_temp
+
+EXPOSE 8080
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["nginx", "-g", "daemon off;"]