VSCode does not display correct types inside a `.d.ts` + `.js` project.

[brasswood]

Describe the bug
VSCode does not display the correct types inside a .d.ts + .js project.

To Reproduce

1. Create a new deno project
2. Open it in VSCode
3. Replace all files in it with the following files:

deno.json:

{
  "tasks": {
    "dev": "deno run --watch main.ts"
  },
  "imports": {
    "@std/assert": "jsr:@std/assert@1"
  },
  "exports": "./mod.js",
  "compilerOptions": {
    "strict": false,
    "checkJs": true
  }
}

mod.js:

// @ts-self-types="./mod.d.ts"

function fetchData(url, options, method, parseJSON) {}

mod.d.ts:

declare function fetchData(url: URL, options: any, method?: string, parseJSON?: boolean): Promise<any>;

export {
    fetchData
}

Expected behavior
When hovering over fetchData in mod.js, the signature should be

function fetchData(url: URL, options: any, method?: string, parseJSON?: boolean): Promise<any>

Actual behavior
The signature is

function fetchData(url: any, options: any, method: any, parseJSON: any): void

(Maybe this actually is expected behavior, in which case I could call this issue a feature request :))

Screenshots

Versions
vscode: 1.107.1 deno: 2.6.3 typescript: 5.9.2 extension: 3.47.0