create with bun says Intent is configured but never writes AGENTS.md

使用 Bun 和 --intent 运行准确的 tanstack create 命令，然后在生成的应用中重现 bunx --bun @tanstack/intent install。跟踪 create 命令的 Intent 安装路径，并将其与 #513 进行比较；完成的标准是目标软件包已安装、intent.skills 已按需配置，并且已写入 AGENTS.md，且没有报告虚假的成功。

tanstack create with bun prints TanStack Intent configured and claims AGENTS.md was wired up, but the command it ran failed. No agent config is written. Deps install fine — it's just the Intent step.

bunx @tanstack/cli@latest create buildify-repro \
  --framework React \
  --package-manager bun \
  --toolchain biome \
  --deployment nitro \
  --no-examples \
  --git \
  --intent \
  --yes

◇  Installed dependencies
◇  TanStack Intent configured
◇  Route tree generated
└  Your TanStack app is ready in 'buildify-repro'.

Errors were encountered during the creation of your app:

Command "bunx --bun @tanstack/intent install" did not run successfully. Please run this manually in your project.

After that, node_modules is there, AGENTS.md isn't, and node_modules/.bin/intent points at @tanstack/devtools/bin/intent.js.

Same command inside the app:

bunx --bun @tanstack/intent install

exits immediately with @tanstack/intent is not installed. — no registry fetch.

Two things going on:

1. bunx is running the intent shim from @tanstack/devtools, not the real package. bunx --bun @tanstack/intent@latest install does download, then hits:

   Permissions: failed: intent.skills is not configured.
   

2. Intent 0.4.0 wants a TTY to write package.json#intent.skills on first run (TanStack/intent#241). create still treats intent install as non-interactive (#442).

Not the same as #495 — that one is --no-install. This happens with deps already installed.

#513 uses @tanstack/intent@latest (same as shadcn@latest) and writes intent.skills: ["@tanstack/*"] before install.

@tanstack/cli 0.71.0, bun 1.3.1, macOS