add: caddy jwt module

docker/Dockerfile.frontend

@@ -1,4 +1,8 @@
 # build stage
+FROM caddy:2-builder-alpine as xcaddy-stage
+RUN xcaddy build --with github.com/ggicci/caddy-jwt
+
+
 FROM node:12.22.12-bullseye as build-stage
 WORKDIR /app
 COPY package.json package-lock.json ./
@@ -8,5 +12,6 @@ RUN npm run build
 
 # production stage
 FROM caddy:2-alpine as production-stage
+COPY --from=xcaddy-stage /usr/bin/caddy /usr/bin/caddy
 COPY --from=build-stage /app/dist /usr/share/caddy
 EXPOSE 80