feat: add rate limiting middleware to /api/v1/ routes

[LaGodxy]

Description
To protect our API from getting overwhelmed or spammed by bots, we need to implement a basic rate limiter on our main endpoints.

Requirements mets:

Install the express-rate-limit package.

Create a middleware configuration that limits each IP to 100 requests per 15 minutes.

Apply this middleware globally to all /api/v1/ routes.

Ensure the API returns a 429 Too Many Requests status when the limit is hit.

closes #33