Core/Creatures: Changed the spawn health field in creature table to a percentage (#29801)

src/server/scripts/Commands/cs_npc.cpp

@@ -290,9 +290,8 @@ public:
             return false;
         }
 
-        creature->SetMaxHealth(100 + 30*lvl);
-        creature->SetHealth(100 + 30*lvl);
         creature->SetLevel(lvl);
+        creature->UpdateLevelDependantStats();
         creature->SaveToDB();
 
         return true;