fix(gateway): 优化网关连接池和服务端保活配置

- 配置网关HttpClient连接池max-idle-time为30s，确保小于下游服务keep-alive-timeout
- 设置网关连接超时时间为10s，响应超时时间为30s
- 配置下游服务tomcat keep-alive-timeout为60s，避免与网关连接池形成竞争条件
- 将灰度负载均衡器日志级别从warn调整为debug，减少本地开发环境日志噪音
- 添加系统性调试技能配置到Claude设置中

.claude/settings.local.json

@@ -38,7 +38,8 @@
       "PowerShell($env:JAVA_HOME = 'C:\\\\Program Files\\\\Java\\\\jdk-17'; & 'C:\\\\software\\\\apache-maven-3.8.9\\\\bin\\\\mvn.cmd' -pl rdms-project/rdms-project-boot -am test-compile '-Dsurefire.failIfNoSpecifiedTests=false' | Select-String -Pattern 'ERROR|BUILD|FAIL' | Select-Object -Last 40)",
       "PowerShell($env:JAVA_HOME = 'C:\\\\Program Files\\\\Java\\\\jdk-17'; & 'C:\\\\software\\\\apache-maven-3.8.9\\\\bin\\\\mvn.cmd' -pl rdms-project/rdms-project-boot test '-Dsurefire.failIfNoSpecifiedTests=false' | Select-String -Pattern 'Tests run|BUILD|FAILED|ERROR' | Select-Object -Last 80)",
       "Skill(code-review:code-review)",
-      "Bash(Test-Path *)"
+      "Bash(Test-Path *)",
+      "Skill(superpowers:systematic-debugging)"
     ]
   }
 }