Merge branch 'worktree-agent-a9d8edbd439109a45'

GerbilManagerWebAPI/Models/Enclosure.cs

@@ -10,6 +10,22 @@ namespace GerbilManagerWebAPI.Models
         public required string Name { get; set; }
         public string? Notes { get; set; }
 
+        // Reinigungszyklus (aus RennmausPro becken_tb: _SIZE/_MENGE/_CLEANED/_CYCLUS).
+        /// <summary>Maße als Freitext (z. B. "120×50 cm").</summary>
+        public string? Size { get; set; }
+        /// <summary>Empfohlene/maximale Tieranzahl.</summary>
+        public int? Capacity { get; set; }
+        /// <summary>Datum der letzten Reinigung.</summary>
+        public DateOnly? LastCleanedDate { get; set; }
+        /// <summary>Reinigungsintervall in Tagen.</summary>
+        public int? CleaningCycleDays { get; set; }
+
+        /// <summary>Nächste fällige Reinigung = LastCleanedDate + CleaningCycleDays (berechnet, nicht persistiert).</summary>
+        public DateOnly? NextCleaningDate =>
+            LastCleanedDate is { } last && CleaningCycleDays is { } cycle and > 0
+                ? last.AddDays(cycle)
+                : null;
+
         public ICollection<Gerbil> Gerbils { get; } = new List<Gerbil>();
     }
 }