fix(types): resolve type discrepancies between ESM and CJS TypeScript…

[jrnail23]

Resolves #6955

Reconciles type discrepancies between index.d.ts and index.d.cts.

[Copilot]

Pull Request Overview

This PR aligns the CommonJS type definitions in index.d.cts with the ESM definitions by updating signatures and adding missing methods.

• Broaden AxiosHeaderMatcher to accept string or RegExp
• Add getSetCookie on AxiosHeaders and a static from factory on AxiosError
• Fix InternalAxiosRequestConfig generic parameter and expose mergeConfig

Comments suppressed due to low confidence (4)

index.d.cts:9

• The new AxiosHeaderMatcher signature omits the headers: RawAxiosHeaders parameter from the callback, which may break existing matchers that rely on access to all headers. Consider reintroducing that parameter or updating all downstream usage accordingly.

type AxiosHeaderMatcher = string | RegExp | ((this: AxiosHeaders, value: string, name: string) => boolean);

index.d.cts:80

• Missing JSDoc comment for getSetCookie. Add a description explaining what the returned strings represent (e.g., parsed Set-Cookie header values) and any edge-case behavior.

  getSetCookie(): string[];

index.d.cts:102

• No unit tests have been added for the new AxiosError.from factory method. Consider adding tests to verify that it correctly wraps different error inputs and preserves custom properties.

  static from<T = unknown, D = any>(

index.d.cts:555

• The mergeConfig function is newly exposed but lacks documentation. Please add JSDoc explaining its merge strategy and sample usage to guide consumers.

    mergeConfig<D = any>(config1: AxiosRequestConfig<D>, config2: AxiosRequestConfig<D>): AxiosRequestConfig<D>;

[jasonsaayman]

looks good just the swap mentioned as most people do prefer any

[jrnail23]

looks good just the swap mentioned as most people do prefer any

@jasonsaayman, please see this comment:
#6956 (comment)

mistakenly mentioned an incorrect type

[github-actions]

Hi, @jrnail23! This PR has been published in v1.11.0 release. Thank you for your contribution ❤️!