✨ 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/appsettings.json

@@ -5,5 +5,30 @@
       "Microsoft.AspNetCore": "Warning"
     }
   },
+  "ControllerClientCompat": {
+    "ServerVersion": "flyshot-replacement-controller-client-compat/0.1.0"
+  },
+  "Swagger": {
+    "Enabled": true,
+    "DocumentName": "v1",
+    "Title": "Flyshot Replacement HTTP API",
+    "Version": "v1",
+    "JsonRouteTemplate": "swagger/{documentName}/swagger.json",
+    "RoutePrefix": "swagger"
+  },
+  "Cors": {
+    "PolicyName": "LegacyHttpApi",
+    "AllowedOrigins": [
+      "*"
+    ],
+    "AllowedMethods": [
+      "GET",
+      "POST",
+      "OPTIONS"
+    ],
+    "AllowedHeaders": [
+      "*"
+    ]
+  },
   "AllowedHosts": "*"
 }