add auth middleware, correct type in git-username

[pakeku]

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[Copilot]

Pull Request Overview

This PR introduces an authentication middleware to secure endpoints and corrects the type handling in the git-user-name utility.

• Updated git-user-name.ts to use the nullish-coalescing operator for improved type handling.
• Added an authentication middleware and secured the /me route in authRoute.ts.
• Extended tests in authentication.test.ts to cover the invalid token scenario.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
src/utils/git-user-name.ts	Replaced "
src/routes/authRoute.ts	Imported and applied authMiddleware to secure the '/me' endpoint.
src/midleware/authMiddleware.ts	Introduced a new authentication middleware using jwt.verify.
src/http_tests/authentication.test.ts	Added tests to validate the behavior with an invalid token.

Comments suppressed due to low confidence (1)

src/routes/authRoute.ts:7

• The folder name 'midleware' appears to be a misspelling of 'middleware'. Consider updating the folder name for clarity and consistency with common naming conventions.

import authMiddleware from '../midleware/authMiddleware';