feat: SongCreator 씬 완성 — Beat Sage URL 지원, info.dat 메타데이터 자동 추출

- BeatSageUploader: audio_url 지원(UploadFromUrl), PollAndDownload 공통화, ZIP 500 오류 3회 재시도
- BeatSageConverter: info.dat 파싱(SongMetadata), BPM 자동 감지 → 노트 타이밍 변환에 적용
- SongCreatorManager: title/BPM 필수 입력 제거, 난이도 4개 자동 선택, GenerateFlowFromUrl 버그 수정
- NasPublisher: audioPath null 허용(URL 흐름에서 로컬 파일 없는 경우 스킵)
- .gitignore/.gitattributes 초기 설정

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Assets/VRBeatsKit/Modules/VRSDK/Climbing/ClimbPoint.cs

@@ -0,0 +1,92 @@
+using UnityEngine;
+
+namespace VRSDK.Climbing
+{
+    public class ClimbPoint : VR_Grabbable
+    {
+        [SerializeField] private ClimbingTarget target = null;
+        [SerializeField] private float dropRange = 0.2f;
+
+        private Vector3 startGrabPos = Vector3.zero;
+        private Vector3 startLocalPos = Vector3.zero;       
+        public bool isActive = false;
+        protected override void Start()
+        {
+            base.Start();
+
+            target = FindObjectOfType<ClimbingTarget>();
+            onGrabStateChange.AddListener( OnGrabStateChangeClimb );           
+        }
+
+        private void LateUpdate()
+        {
+            if ( IsActiveOrGrabbed() )
+                return;
+
+            if (ShouldDropClimbPoint())
+            {
+                ForceDrop();
+            }            
+        }
+
+        private float CalculateDistanceToHand()
+        {
+            return Vector3.Distance(GetCurrentHandInteractSettings().interactPoint.position, GrabController.OriginalParent.position);
+        }
+
+        private bool IsActiveOrGrabbed()
+        {
+            return isActive || currentGrabState != GrabState.Grab;
+        }
+
+        private bool ShouldDropClimbPoint()
+        {
+            float d = CalculateDistanceToHand();
+
+            return d > dropRange;            
+        }
+
+        private void OnGrabStateChangeClimb(GrabState state)
+        {
+            if (state == GrabState.Grab)
+            {                
+                transform.SetParent(null);
+                Destroy(GrabController.GrabPoint.GetComponent<Joint>());
+                GrabController.UseRotationOffset = false;
+                GrabController.SetPositionControlMode(MotionControlMode.Free);
+                GrabController.transform.SetParent(null);   
+                GrabController.transform.position = GetCurrentHandInteractSettings().interactPoint.position;
+                GrabController.transform.rotation = Quaternion.Euler( GetCurrentHandInteractSettings().rotationOffset ) * GrabController.RotationOffset;
+                rb.isKinematic = true;
+                target.AddActiveClimbPoint(this);
+            }
+            else if (state == GrabState.Drop) 
+            {
+                isActive = false;
+            }
+                   
+        }
+
+        public void SetClimbingPosition()
+        {
+            if (currentGrabState == GrabState.Grab)
+            {
+                Vector3 positionDiff = GrabController.OriginalParent.localPosition - startLocalPos;
+                positionDiff *= -1;
+                Vector3 worldPos = VR_Manager.instance.Player.TrackingSpace.rotation * positionDiff;         
+                target.transform.position = (startGrabPos + worldPos);                
+            }
+        }
+
+        public void OnClimbPointActive()
+        {            
+            startLocalPos = GrabController.OriginalParent.localPosition;
+            startGrabPos = target.transform.position;           
+            isActive = true;
+        }
+
+    }
+
+}
+
+

Assets/VRBeatsKit/Modules/VRSDK/Climbing/ClimbPoint.cs.meta

@@ -0,0 +1,18 @@
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+guid: 3804073d29ca83f41b35dbf7c5862e62
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
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+  serializedVersion: 1
+  productId: 168243
+  packageName: VR Beats Kit
+  packageVersion: 2.0
+  assetPath: Assets/VRBeatsKit/Modules/VRSDK/Climbing/ClimbPoint.cs
+  uploadId: 546658

Assets/VRBeatsKit/Modules/VRSDK/Climbing/ClimbingTarget.cs

@@ -0,0 +1,85 @@
+using UnityEngine;
+using System.Collections.Generic;
+using UnityEngine.Events;
+
+namespace VRSDK.Climbing
+{
+    /// <summary>
+    /// Use this script in the GameObject being affected by climbing in our case the Player gameObject
+    /// </summary>
+    public class ClimbingTarget : MonoBehaviour
+    {
+        [SerializeField] private UnityEvent onClimbStart = null;
+        [SerializeField] private UnityEvent onClimbEnd = null;
+
+        private List<ClimbPoint> climbPointList = new List<ClimbPoint>();
+        private ClimbPoint activeClimbPoint = null;
+        
+        public UnityEvent OnClimbStart { get { return onClimbStart; } }
+        public UnityEvent OnClimbEnd { get { return onClimbEnd; } }
+
+        private void Update()
+        {
+            if (activeClimbPoint != null)
+            {
+                activeClimbPoint.SetClimbingPosition();
+            }
+        }
+
+        private void OnClimbPointReleased(ClimbPoint climbPoint)
+        {
+            climbPointList.Remove(climbPoint);
+
+            if (activeClimbPoint == climbPoint)
+            {
+                activeClimbPoint = GetActiveClimbPoint();
+
+                if (activeClimbPoint != null)
+                {
+                    activeClimbPoint.OnClimbPointActive();
+                }
+                else
+                {
+                    onClimbEnd.Invoke();
+                }
+            }
+
+                                   
+        }
+
+        public void AddActiveClimbPoint(ClimbPoint climbPoint)
+        {
+            climbPointList.Add(climbPoint);
+
+            climbPoint.OnGrabStateChange.AddListener( delegate(GrabState state) 
+            {
+                if (state == GrabState.Drop)
+                {
+                    OnClimbPointReleased(climbPoint);
+                }
+            } );
+
+            if (activeClimbPoint == null)
+            {               
+                activeClimbPoint = GetActiveClimbPoint();
+
+                if (activeClimbPoint != null)
+                {
+                    activeClimbPoint.OnClimbPointActive();
+                    onClimbStart.Invoke();
+                }
+                    
+            }               
+
+        }
+
+        private ClimbPoint GetActiveClimbPoint()
+        {
+            if (climbPointList.Count == 0)
+                return null;
+
+            return climbPointList[0];
+        }
+
+    }
+}

Assets/VRBeatsKit/Modules/VRSDK/Climbing/ClimbingTarget.cs.meta

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+guid: e1ec8244b089c744abb68d250d178409
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
+AssetOrigin:
+  serializedVersion: 1
+  productId: 168243
+  packageName: VR Beats Kit
+  packageVersion: 2.0
+  assetPath: Assets/VRBeatsKit/Modules/VRSDK/Climbing/ClimbingTarget.cs
+  uploadId: 546658