[2026-03-16][chore][general] remove `package-lock.json`, add `isProcessing` debug log, and refactor toast message formatting in `page.tsx`.

👤 Author : dapanel
🌿 Branch : main
🔗 Commit : 662b8c4
📅 Date : 2026-03-16
📝 Note :
chore: remove package-lock.json, add isProcessing debug log, and refactor toast message formatting in page.tsx.