✨ feat(*): 添加 ConfigRoot 运行时配置目录隔离

* 新增 ControllerClientCompatOptions.ConfigRoot 及解析方法
* 兼容层默认从运行目录 Config 加载模型、轨迹和配置
* 移除隐式父工作区根目录推断，旧路径仅在显式配置时生效
* Host 项目编译时将 Config 目录复制到输出目录
* 请求响应日志中间件忽略 /api/status/snapshot 高频轮询
* 补充 ConfigRoot 和日志过滤相关单元测试

tests/Flyshot.Core.Tests/FanucControllerRuntimeDenseTests.cs

@@ -101,7 +101,7 @@ public sealed class FanucControllerRuntimeDenseTests
 
         var options = new ControllerClientCompatOptions
         {
-            WorkspaceRoot = TestRobotFactory.GetWorkspaceRoot()
+            ConfigRoot = TestRobotFactory.GetConfigRoot()
         };
         var robot = new ControllerClientCompatRobotCatalog(options, new RobotModelLoader())
             .LoadProfile("FANUC_LR_Mate_200iD", accLimitScale: 1.0, jerkLimitScale: 1.0);
@@ -547,7 +547,7 @@ public sealed class FanucControllerRuntimeDenseTests
     {
         var options = new ControllerClientCompatOptions
         {
-            WorkspaceRoot = TestRobotFactory.GetWorkspaceRoot()
+            ConfigRoot = TestRobotFactory.GetConfigRoot()
         };
 
         return new ControllerClientCompatService(