Micro service to limit search rate

[DimondKudzai]

This PR introduces application-level rate limiting to the /search route using Flask-Limiter. While there is already rate limiting at the content-cache level (as noted in the documentation), this enhancement adds a secondary layer of protection directly within the application.

Key Features:

• Limits each IP to 10 search requests per minute
• Custom error message returned when the limit is exceeded
• Lightweight and easy to maintain
• Helps prevent abuse and reduce load from spam or bots

Why this matters:

Rate limiting at the app level provides better transparency, immediate protection, and improved debugging. It also complements existing caching strategies without depending solely on infrastructure-level controls.

Implementation:

• Flask-Limiter is initialized with get_remote_address to track IPs
• Applied directly to the search view before registering the route

Tested: Yes, locally with mock requests

[webteam-app]

DimondKudzai is not a collaborator of the repo

[akbarkz]

Hi @DimondKudzai! Thanks a lot for your contribution! Could you please add Flask-Limiter to the dependencies list, specifying the exact version as well?