Jannis Braun
5194dbef25
Refactor the WebSocket layer from a singleton connection to a connection map supporting N concurrent instances. Each connection has its own heartbeat worker, reconnect state, and token. Stores are now instance-aware: serverStore merges servers by origin, chatStore routes API calls through the correct client, and instanceStore triggers WS connect/disconnect on add/remove. DM, social, and voice events remain home-only.