Reorganize scripts into subfolders by responsibility

Move scripts under Assets/Scripts/ into Components, GameMode, Helper,
Network, Enum, Struct and ScriptableObject folders. Pure file moves
(plus folder .meta files); no code changes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Assets/Scripts/Helper/MouseSensitivity.cs

@@ -0,0 +1,41 @@
+using UnityEngine;
+
+/// Global mouse look-around sensitivity multiplier, shared by every camera
+/// controller (FreeCam, FirstPerson, ThirdPersonOrbit). 1 = unchanged baseline.
+/// Persisted per-machine via PlayerPrefs so the setting survives restarts.
+public static class MouseSensitivity
+{
+    public const float Default = 1f;
+    public const float Min = 0.1f;
+    public const float Max = 4f;
+
+    const string PrefKey = "Settings.MouseSensitivity";
+
+    static bool _loaded;
+    static float _multiplier = Default;
+
+    public static float Multiplier
+    {
+        get
+        {
+            if (!_loaded)
+            {
+                _loaded = true;
+                _multiplier = Mathf.Clamp(PlayerPrefs.GetFloat(PrefKey, Default), Min, Max);
+            }
+            return _multiplier;
+        }
+        set
+        {
+            float v = Mathf.Clamp(value, Min, Max);
+            _loaded = true;
+            if (Mathf.Approximately(v, _multiplier)) return;
+            _multiplier = v;
+            PlayerPrefs.SetFloat(PrefKey, v);
+            // Flush to disk now so the setting survives a hard kill (build), not
+            // only a clean quit. Settings changes are rare user actions, so the
+            // extra write is negligible.
+            PlayerPrefs.Save();
+        }
+    }
+}