✨ feat(*): 添加 J519 实发重采样与 JSON 机型模型

* 新增 J519 实发采样器，按 8ms 周期生成 timing/jerk 诊断行并完成 rad->deg 转换
* 兼容层产物导出补充 speedRatio，规划编排补齐 smoothStartStopTiming 与日志透传
* 配置与机型加载切换到运行目录 JSON 模型，并补齐 7L 展开模型与相关单元测试

tests/Flyshot.Core.Tests/PlanningCompatibilityTests.cs

@@ -66,7 +66,7 @@ public sealed class PlanningCompatibilityTests
     {
         var workspaceRoot = GetWorkspaceRoot();
         var configPath = Path.Combine(workspaceRoot, "Rvbust", "EOL9 EAU 90", "eol9_eau_90.json");
-        var modelPath = Path.Combine(workspaceRoot, "FlyingShot", "FlyingShot", "Models", "LR_Mate_200iD_7L.robot");
+        var modelPath = Path.Combine(workspaceRoot, "flyshot-replacement", "Config", "LR_Mate_200iD_7L.json");
 
         var config = new RobotConfigLoader().Load(configPath);
         var baseProfile = new RobotModelLoader().LoadProfile(modelPath, config.Robot.AccLimitScale, config.Robot.JerkLimitScale);