Prepare independent successor playtest with spawn recovery and casualty feedback

tests/test_command_maintenance.py

@@ -55,6 +55,7 @@ struct Mode {
  Work* m_Extraction=&extraction;Work* m_RadioDefence=&radio;Work* m_Recovery=&recovery;
  Command* m_Command=nullptr;Roster* m_Roster=&roster;
  Hook m_OnTick{0,{},"event"},m_OnStop{0,{},"onstop"};std::vector<Entity*> m_OwnedEntities;
+ bool InitialAdmissionsExhausted(){return false;}
  World* GetWorld(){return &world;}bool RefreshRadioFeedback(){return false;}
  void Transition(int phase){m_Phase=phase;StopServices();}
  '''+cpp(body(MODE,'bool Active('))+cpp(body(MODE,'protected void ServerTick('))+cpp(body(MODE,'protected void StopServices('))+r'''