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/GameMode/FirstPersonMode.cs

@@ -2,10 +2,9 @@ using UnityEngine;
 using Unity.Netcode;
 
 /// <summary>
-/// First-person mode. The player keeps walking (WASD, camera-relative) but the camera moves to the
-/// player's eye (the CameraTarget) with free mouse-look, and the player's mesh is hidden so the body
-/// isn't seen from the inside. The orbit camera input is disabled while here so it doesn't fight for
-/// the cursor; the <see cref="FirstPersonController"/> drives its own dedicated CinemachineCamera.
+/// First-person mode. The player keeps walking, but the camera moves to the eye (CameraTarget) with
+/// free mouse-look and the player's mesh is hidden. Orbit camera input is disabled so it doesn't fight
+/// for the cursor; the <see cref="FirstPersonController"/> drives its own dedicated CinemachineCamera.
 /// </summary>
 public class FirstPersonMode : GameMode
 {
@@ -13,7 +12,6 @@ public class FirstPersonMode : GameMode
 
     public override void Enter()
     {
-        // Player stays fully controllable; only the view changes.
         SetPlayerControl(true);
         SetPainting(false);
         SetOrbitInputEnabled(false);
@@ -113,16 +111,16 @@ public class FirstPersonMode : GameMode
             for (int i = 0; i < count; i++)
             {
                 var netObj = _hits[i].collider.GetComponentInParent<NetworkObject>();
-                if (netObj && self && netObj == self) continue; // skip own body
+                if (netObj && self && netObj == self) continue;
 
-                end = _hits[i].point; // first non-self solid hit stops the beam here (wall or avatar)
+                end = _hits[i].point;
                 if (netObj && netObj.IsPlayerObject)
                 {
                     var setup = netObj.GetComponent<NetworkPlayerSetup>();
                     if (setup && setup.Role == PlayerRole.Hider && !setup.IsFound)
                         match.ReportHit(netObj.OwnerClientId);
                 }
-                break; // the first non-self hit decides the shot
+                break;
             }
         }