fix(health): 添加 /api/v1/health 端点并修正 mci-server 健康检查

- HealthController: 提供无鉴权健康检查接口，返回 {status: ok}
- AuthInterceptor/WebConfig: 放行 /api/v1/health
- docker-compose.yml: mci-server 健康检查地址改为 /msg-platform/api/v1/health

注意：mci-server Docker 镜像当前因 Maven Central 无法解析 spring-boot-maven-plugin:4.1.0 而无法重新构建，健康检查修复已入库，待网络恢复后重新构建即可生效。

docker-compose.yml

@@ -93,7 +93,7 @@ services:
       rabbitmq:
         condition: service_healthy
     healthcheck:
-      test: ["CMD", "curl", "-fsS", "http://localhost:8080/msg-platform/actuator/health"]
+      test: ["CMD", "curl", "-fsS", "http://localhost:8080/msg-platform/api/v1/health"]
       interval: 10s
       timeout: 5s
       retries: 15