choice tie-break and random fallback + exception cleanup + war<->camp pid

src/warchron/model/war.py

@@ -77,6 +77,7 @@ class War:
             new_events: List[WarEvent] = []
             for ev in self.events:
                 if isinstance(ev, (TieResolved)):
+                    # FIXME cancel TieResolved + TokenSpent
                     if ev.context_type == ContextType.BATTLE:
                         battle = self.get_battle(ev.context_id)
                         campaign = self.get_campaign_by_sector(battle.sector_id)