M1: add networked rigged player avatar (run-around character)

- Import Hodaart Low Poly Character Collection 3 (humanoid-rigged, LFS)
- PlayerAvatar.cs: owner-authoritative CharacterController movement, animation
  derived from measured speed on every client (no NetworkAnimator needed)
- OwnerAuthNetworkTransform.cs: owner-authoritative NetworkTransform
- PlayerLocomotion.controller: Idle/Walk/Run 1D blend tree on Speed (reuses
  Hodaart clips)
- PlayerCharacter.prefab (Character 01 + CC + NetworkObject + owner NT +
  PlayerAvatar + Animator w/ humanoid avatar); registered as PlayerPrefab
- Verified in play: spawns, visible, Idle pose (rig animates), owner-auth

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Assets/Hodaart/HodaartLowPolyCharacterCollection3/Scene/Scripts/EventSystemEnsurer.cs

@@ -0,0 +1,28 @@
+using UnityEngine;
+using UnityEngine.EventSystems;
+#if ENABLE_INPUT_SYSTEM
+using UnityEngine.InputSystem.UI;
+#endif
+
+namespace LowPolyCharacterCollection3
+{
+    [DisallowMultipleComponent]
+    public class EventSystemEnsurer : MonoBehaviour
+    {
+        private void Awake()
+        {
+            if (FindObjectOfType<EventSystem>() == null)
+            {
+                var go = new GameObject("EventSystem");
+                go.AddComponent<EventSystem>();
+#if ENABLE_INPUT_SYSTEM && !ENABLE_LEGACY_INPUT_MANAGER
+                go.AddComponent<InputSystemUIInputModule>();
+                Debug.Log("[EventSystemEnsurer] No EventSystem found — created one with InputSystemUIInputModule.");
+#else
+                go.AddComponent<StandaloneInputModule>();
+                Debug.Log("[EventSystemEnsurer] No EventSystem found — created one with StandaloneInputModule.");
+#endif
+            }
+        }
+    }
+}