feat: add server interface

Signed-off-by: MiaoWoo <admin@yumc.pw>

packages/api/src/interfaces/server.ts

@@ -1,4 +1,9 @@
 export namespace server {
     export const ServerType = Symbol("ServerType");
     export const Console = Symbol("Console");
+    export const Server = Symbol("Server");
+    export interface Server {
+        getVersion(): string;
+        getPlayer(name: string): any;
+    }
 }