fix: OnDisable 加 GC.Collect+WaitForPendingFinalizers 防 SQLite 析构崩溃

- sqlite-net PreparedSqlLiteInsertCommand 析构器在 GC 线程跑 sqlite3_finalize
- Domain reload 时 SQLite native 可能已卸载 → 崩溃
- GC.Collect+WaitForPendingFinalizers 确保析构器在 native 还活着时完成

src/Unity/Assets/Scripts/Managers/GroupManager.cs

@@ -22,7 +22,7 @@ namespace CounterDrone.Unity
             _service = new GroupService(new GroupRepository(_db));
         }
 
-        void OnDisable() { _db?.Dispose(); _db = null; }
+        void OnDisable() { _db?.Dispose(); _db = null; GC.Collect(); GC.WaitForPendingFinalizers(); }
 
         public Group Create(string name, GroupType type, string desc = "")
             => _service.CreateGroup(name, type, desc);

src/Unity/Assets/Scripts/Managers/ModelManager.cs

@@ -24,7 +24,7 @@ namespace CounterDrone.Unity
             _service = new ModelService(new ModelRepository(_db), _paths);
         }
 
-        void OnDisable() { _db?.Dispose(); _db = null; }
+        void OnDisable() { _db?.Dispose(); _db = null; GC.Collect(); GC.WaitForPendingFinalizers(); }
 
         public ModelInfo Import(string filePath, string name) => _service.ImportModel(filePath, name);
         public void Delete(string id) => _service.DeleteModel(id);

src/Unity/Assets/Scripts/Managers/ReportManager.cs

@@ -22,7 +22,7 @@ namespace CounterDrone.Unity
             _service = new ReportService(_db, _paths);
         }
 
-        void OnDisable() { _db?.Dispose(); _db = null; }
+        void OnDisable() { _db?.Dispose(); _db = null; GC.Collect(); GC.WaitForPendingFinalizers(); }
 
         public SimulationReport Generate(string taskId, TaskFullConfig cfg, List<SimEvent> events, string status, float duration)
             => _service.Generate(taskId, cfg, events, status, duration);

src/Unity/Assets/Scripts/Managers/ScenarioManager.cs

@@ -35,7 +35,7 @@ namespace CounterDrone.Unity
             }
         }
 
-        void OnDisable() { _db?.Dispose(); _db = null; }
+        void OnDisable() { _db?.Dispose(); _db = null; GC.Collect(); GC.WaitForPendingFinalizers(); }
 
         public SimTask CreateTask(string name, string number) => _service.CreateTask(name, number);
         public void DeleteTask(string id) => _service.DeleteTask(id);

src/Unity/Assets/Scripts/Managers/SimulationRunner.cs

@@ -149,7 +149,7 @@ namespace CounterDrone.Unity
         }
 
         public void Stop() => _engine?.Stop();
-        void OnDisable() { _db?.Dispose(); _db = null; }
+        void OnDisable() { _db?.Dispose(); _db = null; GC.Collect(); GC.WaitForPendingFinalizers(); }
         void OnDestroy() => Stop();
 
         private void SpawnDroneVisual(DroneEntity drone)