v1.2.3.b2 - Part 2

## GENERAL
- Added a css_entity admin command to check whether an entity with a given index/handle exists (prints the designer name to chat or console).
- Added a TakeDamage post-hook (OnTakeDamagePost) alongside the existing pre-hook, so skills can now react after damage has actually been applied, not just before.
- Added CreateMolotovProjectile (new CMolotovProjectile_CreateFunc signature) and CreateTrackedChicken entity helpers.
- Added a weapon_mp7 → weapon_mp5sd fallback mapping.
- Added class for KillfeedIcons

## SKILL IMPROVEMENTS
- Aimbot:
  -- Only forces a headshot hitgroup once (skips if it's already a head or an invalid hitgroup), and now restores the original hitgroup value in the new post-damage hook instead of leaving it overwritten.
- Tripwire:
  -- Reduced the default wire width from 1.5 to 0.7.

## NEW SKILLS:
- Berserker: You deal more damage and move faster as your health gets lower.
- Blast Shot: Press Attack2 with the MP5 to fire an HE grenade.
- Demon Eye: You deal damage to every enemy you are looking at.
- Fire Rain: Throw a decoy to call down a rain of Molotovs.
- Flashlight: Click [css_useSkill] to turn the flashlight on or off; its light can blind enemies.
- Healing Chicken: Your chickens heal you while you are nearby.
- Jetkick: Select a player to jetkick - every shot they fire knocks them backwards until disabled.
- Last Gasp: After you die, you deal damage to the enemy who killed you.
- Take Ammo: Click [css_useSkill] to take the active weapon's magazine from a random enemy.
- Team Teleport: Press [css_useSkill] to teleport to the teammate you're looking at.

jRandomSkills - SRC Files/src/player/skills/Aimbot.cs

@@ -10,6 +10,7 @@ namespace src.player.skills
     public class Aimbot : ISkill
     {
         private const Skills skillName = Skills.Aimbot;
+        private static readonly ThreadLocal<Stack<(nint Address, HitGroup_t OldValue)>> _restoreStack = new(() => new Stack<(nint, HitGroup_t)>());
 
         public static void LoadSkill()
         {
@@ -50,7 +51,33 @@ namespace src.player.skills
             nint hitGroupData = Marshal.ReadIntPtr(hitGroupPointer, 16);
             if (hitGroupData == nint.Zero) return;
 
-            Marshal.WriteInt32(hitGroupData, 56, (int)HitGroup_t.HITGROUP_HEAD);
+            nint address = hitGroupData + 56;
+            HitGroup_t oldValue = (HitGroup_t)Marshal.ReadInt32(address);
+
+            if (oldValue == HitGroup_t.HITGROUP_HEAD || oldValue == HitGroup_t.HITGROUP_INVALID) return;
+
+            _restoreStack.Value!.Push((address, oldValue));
+            Marshal.WriteInt32(address, (int)HitGroup_t.HITGROUP_HEAD);
+        }
+
+        public static void OnTakeDamagePost(DynamicHook h)
+        {
+            var info = h.GetParam<CTakeDamageInfo>(1);
+
+            if (info == null || info.Handle == nint.Zero)
+                return;
+
+            if (!SkillUtils.IsBulletDamage(info)) return;
+
+            if (_restoreStack.Value!.Count > 0)
+            {
+                var (address, oldValue) = _restoreStack.Value.Pop();
+
+                if (address == nint.Zero)
+                    return;
+
+                Marshal.WriteInt32(address, (int)oldValue);
+            }
         }
 
         public class SkillConfig(Skills skill = skillName, bool active = true, string color = "#ff0000", CsTeam onlyTeam = CsTeam.None, bool disableOnFreezeTime = false, bool needsTeammates = false, string requiredPermission = "", float? hudDuration = null, float? descriptionHudDuration = null, int maxPerServer = -1, Rarity rarity = Rarity.Common) : SkillsInfo.DefaultSkillInfo(skill, active, color, onlyTeam, disableOnFreezeTime, needsTeammates, requiredPermission, hudDuration, descriptionHudDuration, maxPerServer, rarity)