✨ feat: 初始化飞拍替换方案仓库骨架

* 建立 .NET 8 解决方案及分层项目结构
* 添加 Flyshot.Core.Domain 领域模型（机器人、轨迹、运动学）
* 添加 Flyshot.Core.Planning 规划层（ICSP、CubicSpline、采样器）
* 添加 Flyshot.Core.Triggering 触发时序与 IO 时间轴
* 添加 Flyshot.Core.Config 配置兼容与 .robot 解析
* 添加 Flyshot.Server.Host 最小宿主及 /healthz 端点
* 补充单元测试与集成测试项目
* 添加 CLAUDE.md、AGENTS.md、README.md 项目规范

src/Flyshot.Core.Domain/ShotEvent.cs

@@ -0,0 +1,71 @@
+using System.Text.Json.Serialization;
+
+namespace Flyshot.Core.Domain;
+
+/// <summary>
+/// Describes the sampled shot-event mapping that downstream monitoring and reports consume.
+/// </summary>
+public sealed class ShotEvent
+{
+    /// <summary>
+    /// Initializes a validated shot-event mapping result.
+    /// </summary>
+    public ShotEvent(int waypointIndex, double triggerTime, int sampleIndex, double sampleTime, IoAddressGroup addressGroup)
+    {
+        if (waypointIndex < 0)
+        {
+            throw new ArgumentOutOfRangeException(nameof(waypointIndex), "Waypoint index must be zero or positive.");
+        }
+
+        if (triggerTime < 0.0)
+        {
+            throw new ArgumentOutOfRangeException(nameof(triggerTime), "Trigger time must be zero or positive.");
+        }
+
+        if (sampleIndex < 0)
+        {
+            throw new ArgumentOutOfRangeException(nameof(sampleIndex), "Sample index must be zero or positive.");
+        }
+
+        if (sampleTime < 0.0)
+        {
+            throw new ArgumentOutOfRangeException(nameof(sampleTime), "Sample time must be zero or positive.");
+        }
+
+        WaypointIndex = waypointIndex;
+        TriggerTime = triggerTime;
+        SampleIndex = sampleIndex;
+        SampleTime = sampleTime;
+        AddressGroup = addressGroup ?? throw new ArgumentNullException(nameof(addressGroup));
+    }
+
+    /// <summary>
+    /// Gets the original teach-waypoint index.
+    /// </summary>
+    [JsonPropertyName("waypointIndex")]
+    public int WaypointIndex { get; }
+
+    /// <summary>
+    /// Gets the mathematically resolved trigger time.
+    /// </summary>
+    [JsonPropertyName("triggerTime")]
+    public double TriggerTime { get; }
+
+    /// <summary>
+    /// Gets the discrete sample index selected by the trigger scheduler.
+    /// </summary>
+    [JsonPropertyName("sampleIndex")]
+    public int SampleIndex { get; }
+
+    /// <summary>
+    /// Gets the sampled trigger time used by runtime outputs.
+    /// </summary>
+    [JsonPropertyName("sampleTime")]
+    public double SampleTime { get; }
+
+    /// <summary>
+    /// Gets the IO address group associated with the trigger.
+    /// </summary>
+    [JsonPropertyName("addressGroup")]
+    public IoAddressGroup AddressGroup { get; }
+}