feat: 添加卵囊建筑，实现基于通量的孵化和幼虫交互功能。

Source/ArachnaeSwarm/Buildings/Building_EquipmentOotheca/Building_EquipmentOotheca.cs

@@ -92,6 +92,18 @@ namespace ArachnaeSwarm
         {
             base.Tick();
 
+            // 清理无效的幼虫引用
+            if (assignedLarva != null)
+            {
+                if (assignedLarva.Dead || assignedLarva.Destroyed ||
+                    assignedLarva.CurJobDef == null ||
+                    assignedLarva.CurJobDef.defName != "ARA_OperateIncubator" ||
+                    assignedLarva.CurJob?.targetA.Thing != this)
+                {
+                    assignedLarva = null;
+                }
+            }
+
             if (larvaOperateTicksRemaining > 0)
             {
                 larvaOperateTicksRemaining--;

Source/ArachnaeSwarm/Buildings/Building_Ootheca/Building_Ootheca.cs

@@ -202,6 +202,18 @@ namespace ArachnaeSwarm
         {
             base.Tick();
 
+            // 清理无效的幼虫引用
+            if (assignedLarva != null)
+            {
+                if (assignedLarva.Dead || assignedLarva.Destroyed ||
+                    assignedLarva.CurJobDef == null ||
+                    assignedLarva.CurJobDef.defName != "ARA_OperateIncubator" ||
+                    assignedLarva.CurJob?.targetA.Thing != this)
+                {
+                    assignedLarva = null;
+                }
+            }
+
             if (larvaOperateTicksRemaining > 0)
             {
                 larvaOperateTicksRemaining--;