docs: add AGPL-3.0 license, README i18n, and TTS accuracy fix (#2)
* docs: add AGPL-3.0 license, README i18n, and TTS accuracy fix
- LICENSE: add GNU AGPL v3 with InfiPlot copyright notice
- README.md: rewrite for open-source project, fix TTS description
(TTS uses MiMo's own protocol, not OpenAI-compatible)
- README.zh-CN.md: add Simplified Chinese translation
- README.ja.md: add Japanese translation
- package.json: change license from UNLICENSED to AGPL-3.0-only
* fix: address Copilot review — .env.example TTS comment, zh-CN formatting
- .env.example: clarify TTS uses MiMo's own protocol, not OpenAI-compatible
- README.md: 'land paper after paper' → 'publish paper after paper'
- README.zh-CN.md: add spaces around '5 月', fix code formatting
for model names (deepseek-v4-flash)
Zonghao Yuan
9a3511f220