QoE Update

## Added

- **`CurseSkillPerPlayer`** (config.json) — limits how many curse skills (Darkness, JumpBan, PrimaryBan, Bankrupt and 14 others) can be stacked on a single player per round. `null` = unlimited (default), `1` = one curse per player, `2` = two. When the limit is reached the target is rejected and the curser gets a chat warning. Enforced centrally in `SkillAction`, so no per-skill code is needed.
- **Tripwire cooldown mode** — replaces the fixed wire limit with a Replicator-style cooldown. Players can place as many wires as they want as long as the cooldown is up; remaining time is shown on the HUD. Configurable via `Cooldown` in skillsInfo.json (default 20s).
- **Tripwire team colors** — T wires red (255, 64, 64), CT wires blue (64, 128, 255).

## Fixed

- **ExpensiveAmmo** also charged money for knife swings and grenade throws. It now only charges when a bullet-firing weapon is fired.
- **Knockback** also triggered on grenade throws; bound to the same allowlist.

## Removed

- Dead code: `Earthquake.cs` and `HealingChicken.cs` (neither was registered in the `Skills` enum, so neither ever ran), `EntityManager.CreateTrackedEnvShake`, `EntityManager.CreateTrackedChicken`, `PlayerManager.UpdatePlayerSkill`.

## Changed

- **Tripwire wires are now removed when the owner dies or loses the skill.** Previously they stayed on the map until the end of the round.
- `PlayerEvents.cs` split into three partial files: player events in `PlayerEvents.cs`, round and skill dispatch in `RoundEvents.cs`, entity and weapon hooks in `EntityEvents.cs`. Behaviour is unchanged; all members stay in the same `Event` class.
- 28 copy-pasted enemy-gathering LINQ chains reduced to the shared helper (Bankrupt, CarefulBullets, Darkness, Deactivator, Deaf, ExpensiveAmmo, Giant, Glitch, Jammer, JumpBan, JumpCurse, LifeSwap, Magnifier, MoneySwap, Nightmare, Poison, PrimaryBan, WildThrow).

jRandomSkills - SRC Files/src/utils/Config.cs

@@ -90,6 +90,7 @@ namespace src.utils
             public bool TraceRayBeam { get; set; }
             public string DisableHUDOnDeathPermission { get; set; }
             public bool DisableSkillsOnRoundEnd { get; set; }
+            public int? CurseSkillPerPlayer { get; set; }
             public LanguageSystem LanguageSystem { get; set; }
             public HtmlHudCustomisation HtmlHudCustomisation { get; set; }
             public ChatMessage ChatMessage { get; set; }
@@ -119,6 +120,7 @@ namespace src.utils
                 DisableSpectateHUD = false;
                 DisableHUDOnDeathPermission = "@jRandomSkills/death";
                 DisableSkillsOnRoundEnd = false;
+                CurseSkillPerPlayer = null;
 
                 LanguageSystem = new LanguageSystem
                 {