v2.1.0 - Smart Voice & Robust Gestures

Phase 3 Complete 🧠🖐️\n\n- Smart AI Layer: Knows app names ('Code' -> 'VS Code') and handles shortcuts ('Volume Up').\n- Robust Gestures: Clicks now use 'Normalized Distance', adapting to your hand's distance and angle.\n- Polished: Silent operation and better stability.