Refactor Assets/Scripts: trim restating comments, minor structure cleanups

Sweep over 48 files (Editor/ excluded): remove comments that restate the
code, condense class summaries, fix three stale doc statements
(HsvColorPicker alpha bar, PaintHud layoutPrefab, MasterVolume
FallbackDefault). Inline two single-use wrappers (IsPointerOverUi,
BuildModes), drop an unused using, replace a magic literal with the
existing ParallaxBase constant, and convert ~10 UnityEngine.Object null
checks to the implicit-bool convention. No serialized fields, signatures,
RPC/NetworkVariable names, defaults, or #if blocks touched.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Assets/Scripts/Components/Controller/FreeCamController.cs

@@ -5,14 +5,10 @@ using UnityEngine.InputSystem;
 #endif
 
 /// <summary>
-/// Free-flying spectator camera. Drives its OWN dedicated <see cref="CinemachineCamera"/> by moving
-/// this transform with WASD (relative to where it looks), Q/E (or Space/Left&#160;Ctrl) for down/up
-/// and the mouse for look. Collision is a <see cref="CharacterController"/> capsule sized like the
-/// player's, so the freecam slides along world geometry instead of clipping through walls/floors.
-///
-/// Activation is driven by <see cref="FreeCamMode"/> via <see cref="SetActive"/>: it raises the vcam
-/// priority so the CinemachineBrain blends to it, snaps the rig to the current view (no jump) and
-/// locks the cursor. While inactive the vcam rests at a low priority and this component does nothing.
+/// Free-flying spectator camera on its own dedicated <see cref="CinemachineCamera"/>: WASD flight relative
+/// to the view, Q/E (or Space/Left&#160;Ctrl) for down/up, mouse look. A <see cref="CharacterController"/>
+/// capsule makes it slide along world geometry instead of clipping. Driven by <see cref="FreeCamMode"/>
+/// via <see cref="SetActive"/>; while inactive this component does nothing.
 /// </summary>
 [RequireComponent(typeof(CharacterController))]
 [DisallowMultipleComponent]
@@ -194,5 +190,4 @@ public class FreeCamController : MonoBehaviour
         return Input.GetKey(KeyCode.LeftShift);
 #endif
     }
-
 }