Changes across README.md + 29 translations:
- Remove 🌐 English | Português (BR) language switcher from top
- Move Free AI Provider agents table below badges/links
- Move 📧 Support section right after agents table
- Move 💡 Key Features before 🎯 Use Cases
- Remove 📊 Available Models section
- Move 🔐 OAuth section inside Troubleshooting
- Remove entire 🇧🇷 Portuguese duplicate section at bottom
Add localized README files for additional languages including
Arabic (README.ar.md) and Filipino (README.fil.md) to improve
accessibility and broaden the project's international reach.