Refactor: Implement multi-item inventory for Pad Tracker and dynamic navigation

lib/models/scripture.dart

@@ -12,15 +12,15 @@ part 'scripture.g.dart'; // Hive generated adapter
 /// Scripture model for daily verses and devotionals
 @HiveType(typeId: 10) // Unique typeId for Scripture
 class Scripture extends HiveObject {
-  @HiveField(0)
+  @HiveField(0, defaultValue: {})
   final Map<BibleTranslation, String> verses;
   @HiveField(1)
   final String reference;
   @HiveField(2)
   final String? reflection;
-  @HiveField(3)
+  @HiveField(3, defaultValue: [])
   final List<String> applicablePhases;
-  @HiveField(4)
+  @HiveField(4, defaultValue: [])
   final List<String> applicableContexts;
 
   Scripture({