judge: add type annotations (#300)

Co-authored-by: undefined <i@undefined.moe>

packages/hydrojudge/src/interface.ts

@@ -1,12 +1,8 @@
-export interface SFile {
-    src?: string,
-    content?: string,
-    fileId?: string,
-}
+import { CopyInFile } from './sandbox/interface';
 export interface Execute {
     execute: string,
     clean: Function,
-    copyIn: Record<string, SFile>,
+    copyIn: Record<string, CopyInFile>,
     time?: number,
 }
 export interface CompileErrorInfo {