[fetch-router] Params are not typed correctly in RouteHandlers object (re-open)

[GuptaSiddhant]

Hi, great work on Remix 3 and thanks for publishing individual packages which can be used as needed.

I ran into some typescript troubles using the new fetch-router package. I created a small reproduction repo: https://github.com/GuptaSiddhant/fetch-router-test, and added a item resources.

In VSCode, the intellisence cannot infer type of the default id param in the RouteHandlers object.

• The params object has type

  (parameter) params: Simplify<ParamsFromTokens<A["protocol"], false> & ParamsFromTokens<A["hostname"], false> & ParamsFromTokens<A["pathname"], false>>
  

• and the params.id has type any (see attached screenshot)
  
• The result is same whether I use either
  • const handlers: RouteHandlers<typeof routes> = {...}
  • const handlers = {...} satisfies RouteHandlers<typeof routes>

Env config:

• Editor: VSCode with 0 extensions enabled
• The reproduction project has only 2 dependencies - @remix-run/fetch-router@^0.8.0 and typescript@^5.9.0. (VSCode uses typescript from repo's node_modules)
• There are no errors while running typecheck and node-test (router works).
• Device: MacBook Pro M2-Pro 32GB RAM

This issue is re-opened since the last issue #10772 was resolved for me. Thanks in advance.