Bug Report: cookie-es should be listed as a dependency in @tanstack/router-core

Description

When deploying applications that use @tanstack/router-core on AWS Amplify Hosting, the build fails because cookie-es is imported by the package but not listed as a dependency. This causes a runtime error in production environments.

Error Log

H3Error: Cannot find package '/var/task/node_modules/cookie-es/index.js' imported from /var/task/node_modules/@tanstack/router-core/dist/esm/ssr/headers.js
at legacyMainResolve (node:internal/modules/esm/resolve:210:26)
...
cause: Error: Cannot find package '/var/task/node_modules/cookie-es/index.js' imported from /var/task/node_modules/@tanstack/router-core/dist/esm/ssr/headers.js

Environment

• @tanstack/router-core version: Latest (via @tanstack/react-router@^1.131.36)
• Deployment Platform: AWS Amplify Hosting
• Node.js version: Node.js runtime in AWS Lambda

Reproduction Steps

1. Create a new React app with TanStack Router
2. Deploy to AWS Amplify Hosting
3. The deployment fails with the above error

Current Workaround

Manually adding cookie-es as a dependency in the application's package.json:

{
  "dependencies": {
    "cookie-es": "^2.0.0"
  }
}

Expected Behavior

cookie-es should be listed as a dependency in @tanstack/router-core's package.json since the package imports it directly in /dist/esm/ssr/headers.js.

Additional Context

• This issue was discovered while troubleshooting deployment failures on AWS Amplify
• Adding the package to Vite's optimizeDeps.include may also be needed for some environments

Suggested Fix

Add cookie-es to the dependencies in @tanstack/router-core/package.json:

{
  "dependencies": {
    "cookie-es": "^2.0.0"
  }
}