KeyboardHAL (6×6 Matrix Scan)
  └─► MIE_Bridge ──────────────────────── WASM Phase 4
        ├─ MIE_Processor (State Machine)
        │    ├─ MIE_Timer (RP2350 alarms)
        │    └─ MIE_Trie  (Phonetic Trie)
        └─ MeshtasticSerial (Web Serial)
DisplayHAL (ILI9341 320×240 landscape) ◄── LVGL WASM Phase 4
  └─► MokyaRenderer (LVGL-style widgets)
        └─► ScreenManager (lv_scr_load_anim)
              ├─ ChatScreen
              ├─ MapScreen
              └─ SettingsScreen