MeshPainter-Pipette: von AVP/*-Shadern picken + Console-Spam-Fix

- Material-Read-Helper (GetColorProp/GetTexProp/GetFloatProp/ApplyST) auf
  variadische Namenslisten umgestellt
- Albedo/Metallic/Smoothness/Emission der AVP-Shader (POM, Glass, Velvet,
  Velvet_Curtains) werden jetzt name- und typ-tolerant gepickt
- typ-gepruefter HasProp (Shader.GetPropertyType) verhindert GetFloat-Spam
  bei _Metallic/_Smoothness als Textur
- ConcealmentVolume: begleitende Anpassung

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

Assets/Scripts/Components/Concealment/ConcealmentVolume.cs

@@ -18,6 +18,8 @@ using UnityEngine;
 [DisallowMultipleComponent]
 public class ConcealmentVolume : MonoBehaviour
 {
+    static readonly Color gizmoColor = new(0.2f, 0.6f, 1f, 0.35f);
+
     public enum BakeMethod { WindingNumberOrFloodFill, WindingNumberOnly, FloodFillOnly }
 
     [Header("Bake settings")]
@@ -30,10 +32,6 @@ public class ConcealmentVolume : MonoBehaviour
 
     [SerializeField] private BakeMethod method = BakeMethod.WindingNumberOrFloodFill;
 
-    [Header("Debug")]
-    [SerializeField] private bool drawBakedGizmos;
-    [SerializeField] private Color gizmoColor = new Color(0.2f, 0.6f, 1f, 0.35f);
-
     // --- Baked data (local space) ---
     [SerializeField, HideInInspector] private Vector3 origin;   // local min corner of the grid
     [SerializeField, HideInInspector] private float voxelSize;
@@ -242,7 +240,7 @@ public class ConcealmentVolume : MonoBehaviour
 
     private void OnDrawGizmosSelected()
     {
-        if (!drawBakedGizmos || !HasBake) return;
+        if (!HasBake || UnityEditor.Selection.activeTransform != transform) return;
         Gizmos.color = gizmoColor;
         Gizmos.matrix = transform.localToWorldMatrix;
         Vector3 cube = Vector3.one * (voxelSize * 0.9f);