chore(docker): update nginx dockerfile

docker/nginx/Dockerfile

@@ -8,9 +8,9 @@ RUN rm /etc/nginx/conf.d/default.conf
 # - ./.docker/nginx/default.conf:/etc/nginx/conf.d/default.conf:ro
 # - ./.docker/nginx/sites-enabled:/etc/nginx/sites-enabled:ro
 # 将本地 nginx 配置复制到镜像中并设置为只读
-COPY ./conf.c /etc/nginx/conf.c
+COPY ./conf.c/ /etc/nginx/conf.c/
 COPY ./default.conf /etc/nginx/conf.d/default.conf
-COPY ./sites-enabled /etc/nginx/sites-enabled
+COPY ./sites-enabled/ /etc/nginx/sites-enabled/
 
 # 设置只读权限（文件 0444，目录及其内容 0555）
 RUN chmod 0444 /etc/nginx/conf.c \