Preserve stolen intel evidence and safely clean up spent folders

tests/test_intel_body_inspection.py

@@ -63,6 +63,10 @@ int main(){
  ERR_IssuedIntel a{&present,"radio-1"},b{&missing,"mortar-3"},c{nullptr,"depot-1"};ERR_BodyEvidence record{&body,{&a,&b,&c},false};Evidence service;service.record=&record;Array<string> result;
  observer.position={3,0,0};assert(service.Inspect(&body,&observer,result));assert(result.size()==2&&result.Contains("mortar-3")&&result.Contains("depot-1")&&!result.Contains("radio-1"));
  assert(!service.Inspect(&body,&observer,result));
+ // Engine deletion clears the weak entity reference, not the issued site.
+ // A consumed folder must remain reportable as missing after physical cleanup.
+ record.Searched=false;b.Folder=nullptr;
+ assert(service.Inspect(&body,&observer,result)&&result.Contains("mortar-3"));
  Entity wreck,seat,unrelated;body.parent=&seat;seat.parent=&wreck;service.m_Roster={&record};
  assert(service.RetainedWithin(&body)&&service.RetainedWithin(&seat)&&service.RetainedWithin(&wreck));
  assert(!service.RetainedWithin(&unrelated)&&!service.RetainedWithin(nullptr));