refactor(auth): consolidate authentication middleware

[ayo-mide55]

Delegates the legacy auth.ts and authMiddleware.ts import paths to the canonical database-backed authenticate middleware. This preserves existing imports while consistently rejecting missing, invalid, suspended, and banned accounts; role authorization remains available through the compatibility helper.

Closes #185

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[Tybravo]

@ayo-mide55

Thanks for your contribution

However I can't merge this PR because I don't know why i am seeing 2 participant when i assigned only one contributor.

Please fix this.

[ayo-mide55]

The commit attribution and formatting updates are in place. Please approve the pending CI run, then review and merge this PR when the checks pass.

[ayo-mide55]

@Tybravo I checked the current PR history: it contains one commit authored by @ayo-mide55 and has no co-authored commit. GitHub currently lists @ayo-mide55 and you as the two participants. If you are seeing another contributor account, could you point me to it? If those are the two you meant, please consider merging this PR; the assigned contributor is the sole commit author.

[Tybravo]

@ayo-mide55

Well-fixed and now we have only 1 contributor as assigned to have legitimately worked on the issue.

Thanks for your contribution to the project