Refactor VPN proxy client implementation

Dockerfile.client

@@ -1,15 +1,16 @@
-ARG NODE_BUILD_IMAGE=node:20-alpine
+ARG NODE_BUILD_IMAGE=node:20.19-alpine
 ARG RUNTIME_IMAGE=debian:bookworm-slim
 
-FROM ${NODE_BUILD_IMAGE} AS web-build
+FROM ${NODE_BUILD_IMAGE} AS build
 WORKDIR /src
 COPY package.json package-lock.json ./
 RUN npm ci
-COPY index.html vite.config.js ./
+COPY index.html vite.config.ts tsconfig*.json ./
 COPY src/web ./src/web
+COPY src/server ./src/server
 COPY src/shared ./src/shared
 COPY monitoring/grafana/harbor-gateway.json ./monitoring/grafana/harbor-gateway.json
-RUN npm run build
+RUN npm run build:production
 
 FROM ${RUNTIME_IMAGE}
 ARG SINGBOX_VERSION=1.12.13
@@ -32,10 +33,8 @@ RUN set -eux; \
     rm -rf /tmp/sing-box*
 
 WORKDIR /app
-COPY --from=web-build /src/dist /app/dist
+COPY --from=build /src/dist /app/dist
 COPY package.json /app/package.json
-COPY src/server /app/src/server
-COPY src/shared /app/src/shared
 COPY entrypoint.client.sh /entrypoint.client.sh
 
 RUN chmod +x /entrypoint.client.sh \