YaRateLimit

[brizzinck]

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[Copilot]

Pull Request Overview

This PR introduces "YaRateLimit", a fixed-window rate limiter implementation backed by a yacache.Cache. The rate limiter tracks per-user, per-group request counts within time windows and provides functionality to check if users should be banned when they exceed defined limits.

Key changes:

• Added complete rate limiter implementation with fixed-window algorithm
• Implemented comprehensive test suite covering all major functionality
• Provided clear documentation and examples for the public API

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 7 comments.

File	Description
yaratelimit/yaratelimit.go	Core rate limiter implementation with interfaces, storage format, and all rate limiting logic
yaratelimit/yaratelimit_test.go	Comprehensive test suite covering increment, refresh, overflow, ban detection, and utility functions

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