close war and manage tie

src/warchron/model/tie_manager.py

@@ -82,7 +82,32 @@ class TieResolver:
 
     @staticmethod
     def find_war_ties(war: War) -> List[TieContext]:
-        return []  # TODO
+        if TieResolver.is_tie_resolved(war, ContextType.WAR, war.id):
+            return []
+        scores = ScoreService.compute_scores(war, ContextType.WAR, war.id)
+        buckets: DefaultDict[int, List[str]] = defaultdict(list)
+        for pid, score in scores.items():
+            buckets[score.victory_points].append(pid)
+        ties: List[TieContext] = []
+        for score_value, participants in buckets.items():
+            if len(participants) <= 1:
+                continue
+            tie_id = f"{war.id}:score:{score_value}"
+            if TieResolver.is_tie_resolved(war, ContextType.WAR, tie_id):
+                continue
+            if not TieResolver.can_tie_be_resolved(
+                war, ContextType.WAR, tie_id, participants
+            ):
+                war.events.append(TieResolved(None, ContextType.WAR, tie_id))
+                continue
+            ties.append(
+                TieContext(
+                    context_type=ContextType.WAR,
+                    context_id=tie_id,
+                    participants=participants,
+                )
+            )
+        return ties
 
     @staticmethod
     def apply_bids(