Phase 4b Abilities and skill trees is finished

api/app/services/combat_service.py

@@ -1269,9 +1269,9 @@ class CombatService:
                 character = self.character_service.get_character(char_id, user_id)
 
                 # Add XP and check for level up
-                old_level = character.level
-                character.experience += xp_per_player
-                # TODO: Add level up logic based on XP thresholds
+                leveled_up = character.add_experience(xp_per_player)
+                if leveled_up:
+                    rewards.level_ups.append(char_id)
 
                 # Add gold
                 character.gold += gold_per_player
@@ -1279,9 +1279,6 @@ class CombatService:
                 # Save character
                 self.character_service.update_character(character, user_id)
 
-                if character.level > old_level:
-                    rewards.level_ups.append(char_id)
-
             except Exception as e:
                 logger.error("Failed to distribute rewards to character",
                             char_id=char_id,