fix(movement): jump works locally (airborne velocity preserved)

Two fixes for jump physics:
- Skip ground-snap when velocity Z > 0 (prevents immediate re-landing
  at high framerates where per-frame Z delta < 0.05 snap threshold)
- Guard apply_current_movement velocity write behind OnWalkable check
  (prevents MotionInterpreter.DoMotion from zeroing jump velocity on
  every frame while airborne)
- Guard PlayerMovementController velocity replacement behind OnWalkable
  (preserves momentum during airborne flight)

Also fix run speed: compute RunRate locally via PlayerWeenie.InqRunRate
instead of waiting for server UpdateMotion echo (server doesn't echo
to sender). With Run skill 200, run speed is now 9.5 m/s instead of
4.0 m/s.

Strip all diagnostic logging from previous debug sessions.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/AcDream.App/Input/PlayerMovementController.cs

@@ -97,8 +97,6 @@ public sealed class PlayerMovementController
 
     // Jump charge state.
     private bool _jumpCharging;
-    private int _debugSpeedLogCounter;
-    private int _debugJumpFrames;
     private float _jumpExtent;
     private const float JumpChargeRate = 1.0f; // 0→1 over 1 second
 
@@ -196,8 +194,15 @@ public sealed class PlayerMovementController
         float forwardCmdSpeed;
         if (input.Forward)
         {
-            forwardCmd      = input.Run ? MotionCommand.RunForward : MotionCommand.WalkForward;
+            forwardCmd = input.Run ? MotionCommand.RunForward : MotionCommand.WalkForward;
-            forwardCmdSpeed = 1.0f;
+            // When running, use the PlayerWeenie's RunRate as ForwardSpeed.
+            // The retail server computes this from Run skill + encumbrance and
+            // broadcasts it in UpdateMotion, but it doesn't echo to the sender.
+            // We compute locally using the same formula.
+            if (input.Run && _weenie.InqRunRate(out float runRate))
+                forwardCmdSpeed = runRate;
+            else
+                forwardCmdSpeed = 1.0f;
         }
         else if (input.Backward)
         {
@@ -246,8 +251,6 @@ public sealed class PlayerMovementController
             else if (input.StrafeLeft)
                 localX = -MotionInterpreter.SidestepAnimSpeed * 0.5f;
 
-            if (input.Forward && _debugSpeedLogCounter++ % 60 == 0)
-                Console.WriteLine($"DEBUG speed: stateVel.Y={stateVel.Y:F2} MyRunRate={_motion.MyRunRate:F3} localY={localY:F2}");
             _body.set_local_velocity(new Vector3(localX, localY, savedWorldVz));
         }
 
@@ -275,12 +278,6 @@ public sealed class PlayerMovementController
             {
                 _motion.LeaveGround();
                 outJumpExtent = _jumpExtent;
-                _debugJumpFrames = 500; // log until landing
-                Console.WriteLine($"DEBUG jump FIRED: extent={_jumpExtent:F2} vel={_body.Velocity} onWalk={_body.OnWalkable}");
-            }
-            else
-            {
-                Console.WriteLine($"DEBUG jump FAILED: extent={_jumpExtent:F2} result={jumpResult} onWalk={_body.OnWalkable} contact={_body.InContact}");
             }
             _jumpCharging = false;
             _jumpExtent   = 0f;
@@ -295,12 +292,6 @@ public sealed class PlayerMovementController
         _body.calc_acceleration();
         _body.UpdatePhysicsInternal(dt);
 
-        if (_debugJumpFrames > 0)
-        {
-            _debugJumpFrames--;
-            Console.WriteLine($"DEBUG jump frame: pos.Z={_body.Position.Z:F3} vel.Z={_body.Velocity.Z:F3} onWalk={_body.OnWalkable} accel.Z={_body.Acceleration.Z:F1} dt={dt:F4}");
-        }
-
         // ── 5. Terrain/cell Z snap and ground-contact detection ───────────────
         // Use PhysicsEngine.Resolve to find the ground surface Z under the player.
         // We pass a zero delta because PhysicsBody already moved the position.
@@ -326,11 +317,7 @@ public sealed class PlayerMovementController
                     _body.Velocity = new Vector3(_body.Velocity.X, _body.Velocity.Y, 0f);
 
                 if (wasAirborne)
-                {
-                    Console.WriteLine($"DEBUG LANDED: bodyZ={bodyZ:F3} groundZ={groundZ:F3} vel.Z={_body.Velocity.Z:F3}");
                     _motion.HitGround();
-                    _debugJumpFrames = 0;
-                }
             }
             else
             {

src/AcDream.App/Rendering/GameWindow.cs

@@ -967,7 +967,6 @@ public sealed class GameWindow : IDisposable
             && update.MotionState.ForwardSpeed.HasValue
             && update.MotionState.ForwardSpeed.Value > 0f)
         {
-            Console.WriteLine($"DEBUG RunRate: guid={update.Guid:X8} fwd={update.MotionState.ForwardSpeed.Value:F3}");
             _playerController.ApplyServerRunRate(update.MotionState.ForwardSpeed.Value);
         }