MoveEarth-Addtional

# Changelog - v1.2

## New Features
- **Discord Rich Presence (RPC) Integration**: Added client-side Discord RPC integration to display real-time game status on your Discord profile.
  - **Discord Join Button**: Added a "Join Discord" button that redirects players to the official Discord server (https://discord.gg/QNquTTTdZh).
  - **Tactical Safety (Relative Chunk Coordinates)**: Displays current location as relative block coordinates within the chunk `[0-15, 0-15]` instead of absolute world or chunk coordinates. This shows real-time movement to friends on Discord while keeping your actual world location 100% hidden and secure.
  - **Server & Dimension Detection**: Displays "Singleplayer" or "Multiplayer" (IP is hidden for safety). If connected to `devbase.ruskserver.com`, it displays a special "MoveEarth Official Server" tag. Automatically translates dimension IDs into friendly Japanese names ("地上世界", "ネザー", "ジ・エンド").
  - **Downed Status Sync**: Dynamically updates status to "🚨 Rescuing... (Downed)" when the player enters the bleeding/downed state.

## Technical / Protocol Changes
- Updated the Mod version to `1.2`.
- Updated the network channel registrar protocol version to `1.2`.