chore(release): prepare v3.0.0 release notes

- Add v3.0.0 changelog with project rename details
- Document hero banner addition
- Document brand identity changes

feat!: v2.0.0 - Migrate from npm package to Python-only project

BREAKING CHANGE: Removed npm package support and CLI tool (pto).
Project is now a simple Python library with git clone installation.

Major changes:
- Removed npm packaging and Node.js dependencies
- Removed CLI tool (pto), use Python API directly
- Removed test/ and types/ directories
- Removed .github/workflows/ (CI, publish, release-please)
- Restored outputs/ folder for example outputs
- Updated all README files with new installation instructions
- Updated SKILL.md with Python-only workflow
- Marked npm package as deprecated

Installation now:
  git clone https://github.com/stephenlzc/perfect-text-overlay
  pip install Pillow numpy

Migration guide: See README.md

chore(release): bump version to 1.0.2

- Update package.json version to 1.0.2
- Add CHANGELOG for v1.0.2 with font documentation improvements
- Enhanced font descriptions and language-specific recommendations

chore(release): bump version to 1.0.1

chore(release): bump version to 0.6.2

Version 0.6.1