Implement edit and exit

src/vm/output.ts

@@ -3,6 +3,7 @@ import {Awaitable} from "../util/types.js";
 import childProcess from "node:child_process";
 import fs from "node:fs";
 import crypto from "node:crypto";
+import {tempFile} from "../util/fs.js";
 
 export const getSubjectDisplay = (sub: StrRVal): string => {
     if ( sub.term === 'string' ) {
@@ -53,7 +54,6 @@ export class FakeClipboard {
     }
 }
 
-const tempFile = () => `/tmp/str-${crypto.randomBytes(4).readUInt32LE(0)}.txt`
 export class WlClipboard {
     async read(): Promise<string> {
         const tmp = tempFile()