fix:

No SOFA trend chart or organ-system timeline
No GCS trend chart or component history
No qSOFA history view

VigilCareClinicalAPI/Models/Records/Qsofa/QsofaEvaluationCursor.cs

@@ -0,0 +1,22 @@
+using System.Text;
+using System.Text.Json;
+
+public record QsofaEvaluationCursor(DateTimeOffset EvaluatedAt, Guid Id)
+{
+    public string Encode()
+    {
+        var json = JsonSerializer.Serialize(this);
+        return Convert.ToBase64String(Encoding.UTF8.GetBytes(json));
+    }
+
+    public static QsofaEvaluationCursor? Decode(string? encoded)
+    {
+        if (string.IsNullOrEmpty(encoded)) return null;
+        try
+        {
+            var json = Encoding.UTF8.GetString(Convert.FromBase64String(encoded));
+            return JsonSerializer.Deserialize<QsofaEvaluationCursor>(json);
+        }
+        catch { return null; }
+    }
+}

VigilCareClinicalAPI/Models/Records/Qsofa/QsofaHistoryResponse.cs

@@ -0,0 +1,5 @@
+public record QsofaHistoryResponse(
+    int ActiveCriteria,
+    QsofaCriteriaState Criteria,
+    bool ScreenAlertFired,
+    DateTimeOffset EvaluatedAt);