[LOCKLITE-144] Disable Swagger in production environment

[vbetsch]

Security tags : OWASP-A05:2021

[Copilot]

Pull Request Overview

This PR implements security measures to disable Swagger documentation endpoints in production environments to prevent API documentation exposure.

• Adds Next.js middleware to block access to Swagger endpoints in production
• Returns 404 responses for /api/swagger and /api/docs paths when NODE_ENV is production
• Allows normal request processing for all other routes and non-production environments

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