Orbit v0.1.4

Orbit v0.1.4

• 🐛 Config persistence fix — last_config_name saved on every config load, preventing config loss on app restart
• 🔄 Coroutine-based polling — migrated from Handler+Runnable to lifecycleScope coroutines, no more main thread blocking
• 🧹 TOML builder refactored — extracted shared logic into TomlUtils, removed duplicated code across activities
• 🛡️ Code quality fixes — credential exposure, socks5 quoting, API 30 guard, coroutine leak, unbounded map growth
• ⚡ Faster UI updates — poll 500ms instead of 1s for snappier latency display