importModuleSpecifier "shortest" does not choose shortest result among multiple matching paths aliases

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### 🔎 Search Terms

importModuleSpecifier shortest paths multiple aliases, auto import paths overlapping alias, tryGetModuleNameFromPaths shortest

### 🕗 Version & Regression Information

- This is the behavior in every version I tried, and I reviewed the FAQ for entries about auto-import and paths

### ⏯ Playground Link

N/A — this is a language service auto-import behavior that requires a multi-file project with jsconfig/tsconfig `paths`

### 💻 Code

```json
// jsconfig.json
{
"compilerOptions": {
"paths": {
"@@/*": ["./*"],
"@/*": ["./src/*"]
}
}
}
```
```js
// src/services/foo.js
export function foo() {}

// src/index.js — trigger auto-import for `foo`
```

### 🙁 Actual behavior

Auto-import suggests `@@/src/services/foo`. The `importModuleSpecifier: "shortest"` preference does not influence the choice between two matching `paths` aliases. `tryGetModuleNameFromPaths` returns on the first matching key in iteration order without comparing alternatives.

### 🙂 Expected behavior

With `importModuleSpecifier` set to `"shortest"`, auto-import should compare all matching aliases and suggest `@/services/foo` since it is shorter than `@@/src/services/foo`.

### Additional information about the issue

Workaround is to reorder `paths` entries so the more specific alias appears first, relying on object key insertion order. This is fragile and undocumented.

Start at the mentioned tryGetModuleNameFromPaths entry point and reproduce the multi-file auto-import case using the jsconfig/tsconfig paths configuration. Trace how matching aliases are selected, then verify that the shortest preference produces the shorter alias rather than depending on object key order.

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