feature: Console Replay Simulator

VigilCare.Simulator/Scenarios/ScenarioLoader.cs

@@ -0,0 +1,26 @@
+using System.Text.Json;
+
+public static class ScenarioLoader
+{
+    private static readonly JsonSerializerOptions JsonOptions = new()
+    {
+        PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
+        ReadCommentHandling = JsonCommentHandling.Skip,
+        AllowTrailingCommas = true
+    };
+
+    public static ScenarioFile Load(string path)
+    {
+        if (!File.Exists(path))
+            throw new FileNotFoundException($"Scenario file not found: {path}");
+
+        var json = File.ReadAllText(path);
+        var scenario = JsonSerializer.Deserialize<ScenarioFile>(json, JsonOptions)
+            ?? throw new InvalidOperationException($"Failed to deserialize: {path}");
+
+        return scenario with
+        {
+            Events = scenario.Events.OrderBy(e => e.OffsetMinutes).ToList()
+        };
+    }
+}