[ koteitan/mojimoji ] Update docs and fix markdown charset in dev server
- Remove local-test.sh section from README.md and README-ja.md
- Add markdown charset plugin to vite.config.ts for UTF-8 support
- Update CLAUDE.md development cycle

GitHub
Update docs and fix markdown charset in dev server ยท koteitan/mojimoji@4bd7175
- Remove local-test.sh section from README.md and README-ja.md
- Add markdown charset plugin to vite.config.ts for UTF-8 support
- Update CLAUDE.md...