Small reliability and clarity update

• Steam leaderboard submissions now stay pending and retry until Steam confirms them.
• Improved save-failure and graphics recovery, with clearer on-screen guidance when recovery is possible.
• Fixed rare extra-life pickups being awarded more than once or failing after a visual error. Respawn protection now also blocks tractor pulls, and protected hits no longer consume shields or lives.
• HUD elements and messages now fade when they cover nearby enemies, projectiles or hazards.
• Reduced drawn-out cleanup against lone Space Snake heads and added more spacing between snake encounters.
• Local run history now shows known mode and start/end sectors, and unlock requirements are clearer.

Thank you to everyone who reported problems and shared detailed feedback. It made this patch possible.