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/HunterLaserBeam.cs

@@ -2,12 +2,11 @@ using UnityEngine;
 using UnityEngine.Rendering;
 
 /// <summary>
-/// Momentary world-space laser beam for a hunter's shot. Purely visual (no networking): a LineRenderer drawn
-/// from the muzzle to the hit point that fades IN fast then OUT over its lifetime, animating both opacity
-/// (via per-vertex colour alpha, read by the Chameleon/Laser shader) and thickness (via widthMultiplier).
-/// Self-contained: it builds its own LineRenderer child + an additive material at runtime, so it can be added
-/// to a hunter avatar purely in code with no prefab authoring. Call <see cref="Fire"/> to trigger; the beam
-/// recycles itself (disables the renderer) once it expires.
+/// Momentary world-space laser beam for a hunter's shot. Purely visual (no networking): a LineRenderer
+/// from muzzle to hit point that fades IN fast then OUT, animating opacity (per-vertex colour alpha, read
+/// by the Chameleon/Laser shader) and thickness (widthMultiplier). Self-contained: builds its own
+/// LineRenderer child + additive material at runtime, so it can be added to an avatar purely in code with
+/// no prefab authoring. Call <see cref="Fire"/> to trigger; the beam disables its renderer once expired.
 /// </summary>
 [DisallowMultipleComponent]
 public sealed class HunterLaserBeam : MonoBehaviour