Sube carpetas API, API.Tests, Application y Domain del Backend

Club12-Backend/Domain/Constants/AuditConstants.cs

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+namespace Domain.Constants;
+
+/// <summary>
+/// Identifies audit-trail entries created by an automated process rather than an authenticated user.
+/// </summary>
+public static class AuditConstants
+{
+    public const string SystemUser = "System";
+}

Club12-Backend/Domain/Constants/MatchDefaults.cs

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+namespace Domain.Constants;
+
+/// <summary>
+/// Regulation defaults applied to matches when no explicit score is entered.
+/// </summary>
+public static class MatchDefaults
+{
+    /// <summary>
+    /// Default score awarded to the present team on a walkover.
+    /// </summary>
+    public const int WalkOverWinnerScore = 20;
+
+    /// <summary>
+    /// Score assigned to the absent team on a walkover.
+    /// </summary>
+    public const int WalkOverLoserScore = 0;
+}