CLI runs on Node 20+: npx storebound (bunx keeps working)

- cli/lib/rt.ts: the runtime layer on node: modules (spawn / spawnSync with Bun's defaults, exit codes and
  "Executable not found", which with PATHEXT, sleep, serve, Glob, hasher, gunzip, stdin, SQLite, packageRoot,
  config imports with a type-stripping fallback for Node 20); every Bun.* use in cli/ goes through it
- tools/gen-embedded.ts -> cli/lib/embedded.ts: templates/, cli/shots/*.html and Play's Data safety form embedded
  (replaces Bun text imports; the bundle and the compiled sidecar carry them), checked fresh by bun run ci
- package.json: bin dist/storebound.mjs (Node ESM bundle, tools/build-node.ts, prepack), engines node >=20
- bun run ci: node bundle + node smoke (real node: --version, help, check same as Bun, scan, release plan --help,
  init, MCP handshake + tool call); Forgejo CI sets up Node 20; tests/node-compat.test.ts guards cli/
- install writes npx MCP commands when run with Node; bin/storebound falls back to Node
- docs: npx storebound init (Node 20+) or bunx storebound init

cli/aso.ts

@@ -38,6 +38,7 @@ import type { Ctx } from './lib/ctx';
 import { done, log, printJson, warn } from './lib/log';
 import { appleSections } from './lib/project-files';
 import { textTable } from './lib/table';
+import * as rt from './lib/rt';
 
 const TAG = 'aso';
 const SUBS = ['rank', 'competitors', 'suggest', 'audit'];
@@ -64,7 +65,7 @@ function snapshots<T>(dir: string): { file: string; data: T }[] {
 async function searchAll<P extends { storefront: string; keyword: string }>(plan: P[], limit: number, delay: number, each: (p: P, results: SearchApp[], i: number) => void): Promise<number> {
   let read = 0;
   for (const [i, p] of plan.entries()) {
-    if (i) await Bun.sleep(delay);
+    if (i) await rt.sleep(delay);
     const r = await fetch(searchUrl(p.keyword, p.storefront, limit), { headers: { Accept: 'application/json' } });
     if (r.status === 403 || r.status === 429) { warn(TAG, `Search API answered ${r.status} (rate limit): stopped after ${read} of ${plan.length}; try later or with a larger --delay`); break; }
     if (!r.ok) { warn(TAG, `${p.storefront} "${p.keyword}": HTTP ${r.status}`); continue; }