客户端rsa，冗余清理，bug修复，安卓build问题

Assets/scripts/gamePlay_gameplay/HoldNote.cs

@@ -312,6 +312,11 @@ public class HoldNote : BaseNote
         }
     }
 
+    private void OnDisable()
+    {
+        prevTrackHeld = false;
+    }
+
     private void OnDestroy()
     {
         if (controller != null)
@@ -435,7 +440,7 @@ public class HoldNote : BaseNote
         }
 
         // Removed: CalibratePosition for delay==0f was causing Start segments to snap to incorrect positions
-        // if they started moving immediately after Setup (due to activationTime <= Time.time).
+        // if they started moving immediately after Setup (due to activationTime <= gameplay clock).
         // Start segments should begin at spawnPoint and move from there naturally.
     }
 
@@ -446,7 +451,7 @@ public class HoldNote : BaseNote
         var jm = cachedJudgeManager;
         var tkm = cachedTrackKeyManager;
         bool debugEnabled = JudgeManager.IsDebugEnabled;
-        float now = Time.time;
+        float now = GameplayClock.NowSongTime;
 
         // Sample held state and derive key-down/up edges at the very top, BEFORE any
         // early return. Unity's Input.GetKeyDown/Up are global per-frame edges that
@@ -740,7 +745,7 @@ public class HoldNote : BaseNote
             {
                 if (JudgeManager.IsDebugEnabled) Debug.Log($"[HoldNote] End entered while key still held: {noteColor}, forcing Perfect");
                 // Record release time as current time (player is still holding)
-                releaseTime = Time.time;
+                releaseTime = GameplayClock.NowSongTime;
                 hasReleased = true;
                 JudgeManager.Instance?.RegisterNoteReleased(noteID, true);
                 // Evaluate and judge the hold end - force Perfect since we reached the end while holding
@@ -818,12 +823,11 @@ public class HoldNote : BaseNote
 
         if (segment == NoteSegment.End)
         {
-            float timeToWait = Mathf.Max(0f, scheduledEndTime - Time.time);
+            float timeToWait = Mathf.Max(0f, scheduledEndTime - GameplayClock.NowSongTime);
             if (timeToWait > 0f)
             {
-                // use scaled time here so pause affects this wait
-                float target = Time.time + timeToWait;
-                while (Time.time < target)
+                float target = GameplayClock.NowSongTime + timeToWait;
+                while (GameplayClock.NowSongTime < target)
                 {
                     yield return null;
                 }
@@ -858,7 +862,7 @@ public class HoldNote : BaseNote
 
     private IEnumerator DelayedReturnToPool(float delay)
     {
-        yield return new WaitForSeconds(delay);
+        yield return GameplayClock.WaitForSeconds(delay);
         if (gameObject.activeSelf)
         {
             ReturnToPool();
@@ -883,7 +887,7 @@ public class HoldNote : BaseNote
             if (JudgeManager.IsDebugEnabled) Debug.Log($"[HoldNote] START forced Miss: {noteColor}");
             
             // Use EvaluateHoldEnd to centralize miss logic and statistics
-            EvaluateHoldEnd(Time.time, true);
+            EvaluateHoldEnd(GameplayClock.NowSongTime, true);
             
             // Still need to show judge result and update combo for the head segment
             InputManager.Instance?.ShowJudgeResult(trackIndex, "Miss");
@@ -897,7 +901,7 @@ public class HoldNote : BaseNote
             return;
         }
 
-        float pressTime = Time.time;
+        float pressTime = GameplayClock.NowSongTime;
         float rawOffsetMs = (hitTime - pressTime) * 1000f;
         float offset = Mathf.Abs(pressTime - hitTime);
         string result;
@@ -962,7 +966,7 @@ public class HoldNote : BaseNote
             JudgeManager.Instance.RegisterStartJudged(noteID, false);
             isHoldActive = false;
             
-            EvaluateHoldEnd(Time.time, true);
+            EvaluateHoldEnd(GameplayClock.NowSongTime, true);
 
             try
             {
@@ -1035,10 +1039,10 @@ public class HoldNote : BaseNote
 
     private IEnumerator DelayedReturn()
     {
-        yield return new WaitForSeconds(0.05f);
+        yield return GameplayClock.WaitForSeconds(0.05f);
         if (gameObject.activeSelf)
         {
-            if (JudgeManager.IsDebugEnabled) Debug.Log($"[HoldNote] DelayedReturn: returning {noteID} to pool at time={Time.time:F3}");
+            if (JudgeManager.IsDebugEnabled) Debug.Log($"[HoldNote] DelayedReturn: returning {noteID} to pool at time={GameplayClock.NowSongTime:F3}");
             ReturnToPool();
         }
     }
@@ -1331,7 +1335,7 @@ public class HoldNote : BaseNote
             }
             else
             {
-                releaseTime = Time.time;
+                releaseTime = GameplayClock.NowSongTime;
             }
             hasReleased = true;
             JudgeManager.Instance?.RegisterNoteReleased(noteID, true);
@@ -1353,7 +1357,7 @@ public class HoldNote : BaseNote
             return;
         }
 
-        if (JudgeManager.IsDebugEnabled) Debug.Log($"[HoldNote] ReturnToPool called for {noteID} segment={segment} time={Time.time:F3}");
+        if (JudgeManager.IsDebugEnabled) Debug.Log($"[HoldNote] ReturnToPool called for {noteID} segment={segment} time={GameplayClock.NowSongTime:F3}");
 
         // CRITICAL: Always release lock before returning to pool, regardless of state
         ReleaseTrackJudgeLockSafe();
@@ -1389,6 +1393,7 @@ public class HoldNote : BaseNote
         isJudged = false;
         isHoldActive = false;
         hasBeenHeldFromStart = false;
+        prevTrackHeld = false;
 
         holdStartTime = -1f;
 
@@ -1463,7 +1468,7 @@ public class HoldNote : BaseNote
 
         float activation = controller.ActivationTime;
         float s = controller.CurrentSpeed;
-        float elapsed = Time.time - activation;
+        float elapsed = GameplayClock.NowSongTime - activation;
         Vector3 expected = spawnPointPosition;
 
         if (controller.UsesAbsolutePositioning)