negiix 更换成 caddy

deploy/caddy/Dockerfile

@@ -0,0 +1,14 @@
+# 第一阶段：构建前端静态资源
+FROM node:24-alpine AS build
+
+WORKDIR /src
+COPY frontend/package*.json ./
+RUN npm install
+COPY frontend/ .
+RUN npm run build
+
+# 第二阶段：Caddy 作为公网入口，同时托管前端 dist
+FROM caddy:2.10-alpine
+
+COPY --from=build /src/dist /srv/dist
+EXPOSE 80 443