refactor: 重构配置管理，移除.env依赖，使用docker-compose环境变量+Nacos配置中心

- 更新所有application-prod.yaml，将环境变量占位符替换为硬编码默认值
- 重写docker-compose.core.yml，使用Spring Boot环境变量命名规范
- 修复Jenkins pipeline中的getContainerName方法调用错误
- 配置优先级：Nacos配置中心 > Docker环境变量 > application-prod.yaml

变更文件：
- viewsh-gateway/src/main/resources/application-prod.yaml
- viewsh-module-system-server/src/main/resources/application-prod.yaml
- viewsh-module-infra-server/src/main/resources/application-prod.yaml
- viewsh-module-iot-server/src/main/resources/application-prod.yaml
- viewsh-module-iot-gateway/src/main/resources/application-prod.yaml
- docker-compose.core.yml
- Jenkinsfile

viewsh-module-infra/viewsh-module-infra-server/src/main/resources/application-prod.yaml

@@ -3,17 +3,20 @@
 spring:
   cloud:
     nacos:
-      server-addr: ${NACOS_SERVER_ADDR:127.0.0.1:8848}
-      username: ${NACOS_USERNAME:}
-      password: ${NACOS_PASSWORD:}
+      server-addr: 127.0.0.1:8848
+      username: nacos
+      password: nacos
       discovery:
-        namespace: ${NACOS_NAMESPACE:}
-        group: ${NACOS_GROUP:DEFAULT_GROUP}
+        namespace: ""
+        group: DEFAULT_GROUP
+        ip: 127.0.0.1
         metadata:
           version: 1.0.0
       config:
-        namespace: ${NACOS_NAMESPACE:}
-        group: ${NACOS_GROUP:DEFAULT_GROUP}
+        namespace: ""
+        group: DEFAULT_GROUP
+        file-extension: yaml
+        refresh-enabled: true
   lifecycle:
     timeout-per-shutdown-phase: 30s  # 增加优雅关闭超时时间