[1.13.0] - 2025-08-10

✨ UI Enhancements

• ✨ feat(core): Implement external node management system
• 🌐 feat(api): Add external node management endpoints
• 🔗 feat(normalsub): Add external node URIs to subscriptions
• 💾 feat: Backup nodes.json
• 🛠️ fix: Robust parsing, unlimited user handling, and various script/UI issues
• 📦 chore: Dependency updates (pytelegrambotapi, aiohttp)