This update improves autopilot re-engagement after manual flight.

• Autopilot now creates a smooth curved rejoin path from the aircraft’s current position and heading.
• The aircraft no longer flies directly over the destination airport when autopilot is re-engaged.
• Rejoin logic now guides the aircraft toward a proper runway centerline and glide slope intercept point.
• Altitude and speed transition smoothly during the turn toward the final approach.
• The aircraft follows the glide slope naturally after alignment and continues into a stable landing.
• Fixed incorrect landing sounds and flight termination while the aircraft was still airborne.
• Landing and rollout sounds now require confirmed runway ground contact.
• Improved route progress, remaining-distance, and arrival-state handling after switching between manual flight and autopilot.