# Task: Instant & Smooth Chat

- `[x]` Optimize Startup Flow
    - `[x]` Update `MainActivity.kt` with `setKeepOnScreenCondition`
    - `[x]` Clean up `nav_controller.kt` (remove Loading state)
- `[x]` Optimize Message List (Rooms)
    - `[x]` Refactor `ChatRoomsViewModel` for eager loading
    - `[x]` Update `Message_list.kt` UI
- `[x]` Optimize Chat Room (Messages)
    - `[x]` Refactor `ChatViewModel` for reactive state & eager loading
    - `[x]` Update `Message_Messaging.kt` UI
- `[x]` Optimize Media Loading
    - `[x]` Global Coil Configuration in `MyApplication.kt`
    - `[x]` Pre-calculate Media URLs in `Message` class
    - `[x]` Implement Pre-fetching in `ChatViewModel`
    - `[x]` Refactor `Message_Messaging.kt` UI components
- `[x]` Verification
    - `[x]` Verify startup transition
    - `[x]` Verify room list loading
    - `[x]` Verify chat room transition & message loading
    - `[x]` Verify instant media display