fix: improve shutdown and project continuity

src/main/shutdown.ts

@@ -0,0 +1,18 @@
+export async function waitForCleanup(
+  cleanup: Promise<unknown>,
+  timeoutMs: number
+): Promise<boolean> {
+  let timeout: NodeJS.Timeout | undefined
+  const timedOut = new Promise<false>((resolve) => {
+    timeout = setTimeout(() => resolve(false), timeoutMs)
+  })
+  const settled = Promise.resolve(cleanup).then(
+    () => true as const,
+    () => true as const
+  )
+  const completed = await Promise.race([settled, timedOut])
+  if (timeout) {
+    clearTimeout(timeout)
+  }
+  return completed
+}