[v5] Pass "forceRefresh" param to NAA bridge

[konstantin-msft]

• Pass "forceRefresh" param to NAA bridge.

[Copilot]

Pull Request Overview

This PR adds support for passing the forceRefresh parameter to the NAA (Nested App Auth) bridge in MSAL.js. This ensures that when a client requests a forced token refresh, the parameter is properly forwarded to the underlying authentication bridge.

Key Changes:

• Added forceRefresh property to the TokenRequest type
• Updated the token acquisition logic to pass the forceRefresh parameter to NAA bridge requests
• Added comprehensive test coverage for both when forceRefresh is provided and when it's not

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
lib/msal-browser/src/naa/TokenRequest.ts	Added optional forceRefresh boolean property to the TokenRequest interface
lib/msal-browser/src/controllers/NestedAppAuthController.ts	Modified acquireTokenSilent to forward the forceRefresh parameter to the NAA bridge
lib/msal-browser/test/controllers/NestedAppAuthController.spec.ts	Added test cases to verify forceRefresh parameter is properly forwarded and not set when undefined