docs: add next step links to testing guide

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Co-Authored-By: Claude <[email protected]>

Author: brooksyang

docs/en/development/testing.md

@@ -252,3 +252,8 @@ test:
     - name: Integration Tests
       run: go test -run Integration ./...
 ```
+
+## Next Step
+
+- [Docker Deployment](../deployment/docker.md) - Deploy Bingo projects using Docker
+- [Microservice Decomposition](../advanced/microservices.md) - Learn how to decompose monolith into microservices

docs/zh/development/testing.md

@@ -252,3 +252,8 @@ test:
     - name: Integration Tests
       run: go test -run Integration ./...
 ```
+
+## 下一步
+
+- [Docker 部署](../deployment/docker.md) - 使用 Docker 部署 Bingo 项目
+- [微服务拆分](../advanced/microservices.md) - 了解如何将单体应用拆分为微服务