fix round tie loop + improve tie ranking

src/warchron/model/closure_service.py

@@ -27,7 +27,8 @@ class ClosureService:
     @staticmethod
     def apply_battle_outcomes(war: War, campaign: Campaign, battle: Battle) -> None:
         already_granted = any(
-            isinstance(e, InfluenceGained) and e.source == f"battle:{battle.sector_id}"
+            isinstance(e, InfluenceGained)
+            and e.context_id == f"battle:{battle.sector_id}"
             for e in war.events
         )
         if already_granted:
@@ -49,7 +50,8 @@ class ClosureService:
                 InfluenceGained(
                     participant_id=effective_winner,
                     amount=1,
-                    source=f"battle:{battle.sector_id}",
+                    context_type=ContextType.BATTLE,
+                    context_id=f"battle:{battle.sector_id}",
                 )
             )