✨ feat: 实现 ControllerClient HTTP 兼容层及 FANUC 运行时

- 新增 Flyshot.ControllerClientCompat 兼容层模块
  - 新增 Flyshot.Runtime.Fanuc 运行时模块
  - 新增 LegacyHttpApiController 暴露 HTTP 兼容 API
  - 补充 RuntimeOrchestrationTests 等测试覆盖
  - 补充 docs/ 兼容性需求与逆向工程文档
  - 更新 Host 注册、配置及解决方案引用

  变更概览：
  - Flyshot.ControllerClientCompat — 旧 ControllerClient 语义的 HTTP 适配
  - Flyshot.Runtime.Fanuc — IControllerRuntime 的 FANUC 真机实现
  - LegacyHttpApiController — HTTP API 兼容旧 SDK
  - docs/ — 兼容性需求与逆向工程分析文档
  - 测试：RuntimeOrchestrationTests、LegacyHttpApiCompatibilityTests

src/Flyshot.Server.Host/Flyshot.Server.Host.csproj

@@ -1,6 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
+  <ItemGroup>
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.6.2" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\Flyshot.Core.Domain\Flyshot.Core.Domain.csproj" />
+    <ProjectReference Include="..\Flyshot.ControllerClientCompat\Flyshot.ControllerClientCompat.csproj" />
     <ProjectReference Include="..\Flyshot.Runtime.Common\Flyshot.Runtime.Common.csproj" />
   </ItemGroup>