Move the action from Deno to Node.js and Vite+

src/prepare.ts

@@ -1,8 +1,13 @@
+import { appendFile, rm } from "node:fs/promises";
+import process from "node:process";
+
 import { prepareRuntime } from "./runtime.ts";
 
 const env = (name: string): string => {
-  const value = Deno.env.get(name);
-  if (!value) throw new Error(`${name} is not set`);
+  const value = process.env[name];
+  if (value === undefined || value === "") {
+    throw new Error(`${name} is not set`);
+  }
   return value;
 };
 
@@ -12,10 +17,8 @@ const manifest = await prepareRuntime(
   env("BOT_AGENTS_MASTER_KEY"),
 );
 try {
-  await Deno.writeTextFile(env("GITHUB_OUTPUT"), `manifest=${manifest.manifestPath}\n`, {
-    append: true,
-  });
+  await appendFile(env("GITHUB_OUTPUT"), `manifest=${manifest.manifestPath}\n`);
 } catch (error) {
-  await Deno.remove(manifest.runtimeDir, { recursive: true }).catch(() => undefined);
+  await rm(manifest.runtimeDir, { recursive: true }).catch(() => {});
   throw error;
 }