🎨 バージョンを1.1.0から1.2.0に更新

🐛 圧縮パラメータ更新
Add new image files for noise testing
- Added imgNoiseC.webp (12 MB) for high noise testing scenarios.
- Added imgNoiseM.webp (4 MB) for medium noise testing scenarios.

⚡️ 圧縮計算を改善
Bump version to 1.0.2 and update LFT encoding/decoding logic
- Updated version numbers in package.json and package-lock.json to 1.0.2.
- Enhanced activity level determination in LFT class for better prediction accuracy.
- Adjusted model size and context calculations to accommodate new activity levels.
- Refined encoding and decoding processes, including block-based parameter handling.
- Improved bias modeling and residual calculations for more efficient compression.

⚡️ 圧縮率を小さい画像のみ最適化
bump version to 1.0.1; refactor activity level calculation and optimize residual handling in LFT class