chore(docker): update backend URL handling and package.json versioning

frontend/Dockerfile

@@ -13,6 +13,10 @@ ENV NODE_ENV=production
 ENV NEXT_PUBLIC_LINUX_DO_CREDIT_BACKEND_URL=https://build-placeholder.invalid
 ENV LINUX_DO_CREDIT_SESSION_COOKIE_NAME=__LINUX_DO_CREDIT_SESSION_COOKIE_NAME__
 ENV LINUX_DO_CREDIT_RATE_LIMIT_ENABLED=__LINUX_DO_CREDIT_RATE_LIMIT_ENABLED__
+ENV LINUX_DO_CREDIT_BACKEND_URL=https://build-placeholder-2.invalid
+
+ARG VERSION=""
+ARG BUILD_DATE=""
 
 WORKDIR /app
 
@@ -22,28 +26,26 @@ RUN pnpm install --frozen-lockfile
 
 COPY . .
 
+RUN if [ -n "$VERSION" ] || [ -n "$BUILD_DATE" ]; then \
+  VERSION="$VERSION" BUILD_DATE="$BUILD_DATE" node -e "const fs = require('fs'); const pkg = require('./package.json'); const version = process.env.VERSION; const buildDate = process.env.BUILD_DATE; if (version) pkg.version = version; if (buildDate) pkg.buildDate = buildDate; fs.writeFileSync('./package.json', JSON.stringify(pkg, null, 2) + '\\n')"; \
+fi
+
 RUN pnpm build
 
 RUN grep -rl \
     -e "https://build-placeholder.invalid" \
+    -e "https://build-placeholder-2.invalid" \
     -e "__LINUX_DO_CREDIT_SESSION_COOKIE_NAME__" \
     -e "__LINUX_DO_CREDIT_RATE_LIMIT_ENABLED__" \
     /app/.next > /app/.replace.files
 
 # ---- runner stage ----
 FROM base AS runner
 
-ARG VERSION=""
-ARG BUILD_DATE=""
-
 WORKDIR /app
 
 COPY --from=builder /app .
 
-RUN if [ -n "$VERSION" ] || [ -n "$BUILD_DATE" ]; then \
-  VERSION="$VERSION" BUILD_DATE="$BUILD_DATE" node -e "const fs = require('fs'); const pkg = require('./package.json'); const version = process.env.VERSION; const buildDate = process.env.BUILD_DATE; if (version) pkg.version = version; if (buildDate) pkg.buildDate = buildDate; fs.writeFileSync('./package.json', JSON.stringify(pkg, null, 2) + '\\n')"; \
-fi
-
 EXPOSE 3000
 
 ENTRYPOINT ["./entrypoint.sh"]

frontend/entrypoint.sh

@@ -32,6 +32,7 @@ replace_placeholder() {
 }
 
 replace_placeholder "https://build-placeholder.invalid" "$NEXT_PUBLIC_LINUX_DO_CREDIT_BACKEND_URL"
+replace_placeholder "https://build-placeholder-2.invalid" "$LINUX_DO_CREDIT_BACKEND_URL"
 replace_placeholder "__LINUX_DO_CREDIT_SESSION_COOKIE_NAME__" "$LINUX_DO_CREDIT_SESSION_COOKIE_NAME"
 replace_placeholder "__LINUX_DO_CREDIT_RATE_LIMIT_ENABLED__" "$LINUX_DO_CREDIT_RATE_LIMIT_ENABLED"
 

frontend/next.config.ts

@@ -5,7 +5,7 @@ const nextConfig: NextConfig = {
   experimental: {
   },
   async rewrites() {
-    const backendUrl = process.env.NEXT_PUBLIC_LINUX_DO_CREDIT_BACKEND_URL || 'http://localhost:8000';
+    const backendUrl = process.env.LINUX_DO_CREDIT_BACKEND_URL || 'http://localhost:8000';
     return [
       // 易支付兼容接口 - 创建订单
       {