Implement Caching and Rate Limiting for Search

[Devayani1612]

Description

Add client-side protections to prevent excessive or duplicate search requests from overloading the RERUM API.
This issue focuses on performance, safety, and responsible API usage.

Tasks

• Implement query-based caching for search results

• Define cache expiration (15–30 minutes)

• Reuse cached results for repeated searches

• Implement rate limiting:

  • Max 1 search per second

  • Max 5 searches per minute per user

• Disable search temporarily when limits are exceeded

• Display a user-friendly message when blocked

Deliverables

• Cache implementation (in-memory or localStorage)

• Rate limiting logic

• Clear documentation/comments explaining limits

Acceptance Criteria

• Repeated searches return cached results without new API calls

• Excessive searches are blocked according to defined limits

• Search cannot auto-fire on page load

• No infinite or rapid API request loops occur

• PR submitted to dev_devayani with reviewer assigned

Parent Issue

#84