Guard battle bond save arrays

src/game/state/battleSaveState.ts

@@ -83,6 +83,7 @@ type BattleSaveValidationOptions = {
 const unitDirections = new Set<UnitDirection>(['south', 'east', 'north', 'west']);
 const maxBattleLogEntries = 10;
 const maxBattleLogEntryLength = 96;
+const maxBattleBondEntries = 128;
 const maxTriggeredBattleEventLength = 96;
 const defaultBattleSaveArrayLimit = 128;
 const maxStatusKindsPerUnit = 2;
@@ -310,10 +311,13 @@ function isValidEquipmentProgress(level: unknown, exp: unknown) {
 function isBondArray(value: unknown, options: BattleSaveValidationOptions) {
   return (
     Array.isArray(value) &&
+    value.length <= maxBattleBondEntries &&
+    hasUniqueRecordStrings(value, 'id') &&
     value.every(
       (bond) =>
         isRecord(bond) &&
         typeof bond.id === 'string' &&
+        bond.id.length > 0 &&
         Array.isArray(bond.unitIds) &&
         bond.unitIds.length === 2 &&
         bond.unitIds.every((unitId) => typeof unitId === 'string' && isKnownUnitId(unitId, options)) &&