Add radial pose menu with hotkeys, remove C cycle hotkey

- PlayerPose: Icon (Sprite) + Title (string) UI properties
- PoseMenu: modal pause overlay building a radial menu from Icon Button
  prefab instances; active pose disabled (hover ring marks it); click
  applies pose via SetPoseIndex and closes
- OverviewMenu: pose button wiring with pause hand-off, Esc/Tab chain
  extended; hotkeys C (toggle pose menu) and V (paint mode) mirroring
  the buttons incl. identical gating
- PlayerPoseController: C cycle hotkey and NextPose() removed

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

Assets/Scripts/ScriptableObject/PlayerPose.cs

@@ -8,6 +8,13 @@ using UnityEngine;
 [CreateAssetMenu(fileName = "NewPose", menuName = "Chameleon/Pose")]
 public class PlayerPose : ScriptableObject
 {
+    [Header("UI")]
+    [Tooltip("Icon shown for this pose in the pose selection menu.")]
+    [SerializeField] private Sprite icon;
+
+    [Tooltip("Display name shown for this pose in the pose selection menu.")]
+    [SerializeField] private string title;
+
     [Tooltip("Clip held while the player is idle in this pose (looped if the clip itself loops, " +
              "otherwise frozen on its last frame). Authored for the paintman generic rig; clips for " +
              "other hierarchies will not retarget.")]
@@ -68,6 +75,8 @@ public class PlayerPose : ScriptableObject
     [SerializeField] private float firstPersonCameraTargetYOffset;
 
     // Read-only accessors; semantics are documented on the serialized fields' tooltips above.
+    public Sprite Icon => icon;
+    public string Title => title;
     public AnimationClip Clip => clip;
     public float ClipSpeed => clipSpeed;
     public AnimationClip WalkClip => walkClip;