✨ 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

src/Flyshot.ControllerClientCompat/FlyshotTrajectoryStore.cs

@@ -195,7 +195,9 @@ public sealed class JsonFlyshotTrajectoryStore
             ["io_keep_cycles"] = JsonValue.Create(settings.IoKeepCycles),
             ["acc_limit"] = JsonValue.Create(settings.AccLimitScale),
             ["jerk_limit"] = JsonValue.Create(settings.JerkLimitScale),
-            ["adapt_icsp_try_num"] = JsonValue.Create(settings.AdaptIcspTryNum)
+            ["adapt_icsp_try_num"] = JsonValue.Create(settings.AdaptIcspTryNum),
+            ["planning_speed_scale"] = JsonValue.Create(settings.PlanningSpeedScale),
+            ["smooth_start_stop_timing"] = JsonValue.Create(settings.SmoothStartStopTiming)
         };
     }