sync: sync wip stuff

src/shell/Shell.ts

@@ -1,3 +1,4 @@
+import type { Program } from '../program/Program'
 import type { Terminal } from '../terminal/Terminal'
 import type { EventBroadcaster } from '../utils/EventBroadcaster'
 
@@ -12,6 +13,8 @@ export abstract class Shell {
         this.terminal = terminal
     }
 
+    abstract LoadProgram(program: Program, name: string): void
+    abstract ExecuteProgram(name: string, args: string[]): void
     abstract Init(): void
     abstract HandleKeyInput(key: string, isCharacter: boolean): void
 }