fix: docker hangs

core/database.py

@@ -587,7 +587,17 @@ class NFOGuardDatabase:
         """Close all database connections"""
         if hasattr(self._local, 'connection'):
             try:
+                # For PostgreSQL, ensure all transactions are committed/rolled back
+                try:
+                    # Force rollback any open transactions
+                    self._local.connection.rollback()
+                except Exception:
+                    pass
+                
+                # Close the connection
                 self._local.connection.close()
                 delattr(self._local, 'connection')
-            except Exception:
+                print("✅ Database connection closed successfully")
+            except Exception as e:
+                print(f"⚠️ Error closing database connection: {e}")
                 pass  # Connection may already be closed