Environment

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- Operating System: Linux
- Node Version:     v20.19.2
- Nuxt Version:     3.17.5
- CLI Version:      3.25.1
- Nitro Version:    2.11.13
- Package Manager:  npm@10.7.0
- Builder:          -
- User Config:      typescript
- Runtime Modules:  -
- Build Modules:    -
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Reproduction

This can be reproduced in any Nuxt app. After generating the types in .nuxt, check .nuxt/components.d.ts.

Describe the bug

The NuxtRouteAnnouncer property is defined twice in interface _GlobalComponents and is also exported twice as export const NuxtRouteAnnouncer:

'NuxtRouteAnnouncer': typeof import("../../node_modules/nuxt/dist/app/components/nuxt-route-announcer")['default']
'NuxtRouteAnnouncer': IslandComponent<typeof import("../../node_modules/nuxt/dist/app/components/server-placeholder")['default']>

I noticed it myself when using addComponent twice in a module to add separate client/server versions of the same component, with different mode values.

Another thing I'm also not sure about: In both my addComponent calls I set island: false; however the generated type in components.d.ts for the mode: 'server' version of the component still wraps the component in IslandComponent<>, which I would expect not to happen.

Additional context

No response

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