fix: 更换 PostgreSQL 镜像源

docker-compose.yml

@@ -30,7 +30,7 @@ services:
 
   postgres:
     # 轩辕镜像加速，避免 Docker Hub 拉取超时
-    image: docker.xuanyuan.me/library/postgres:15-alpine
+    image: docker.m.daocloud.io/library/postgres:15-alpine
     container_name: camtalk-postgres
     environment:
       POSTGRES_USER: camtalk