fix: replace console.error with Nest Logger in rate-limit.guard.ts

[Danielobito009]

Summary

Closes #779. Replaces console.error with NestJS structured Logger
in rate-limit.guard.ts for consistent log formatting.

Changes

• src/auth/guards/rate-limit.guard.ts
  • Imported Logger from @nestjs/common
  • Added private readonly logger = new Logger(RateLimitGuard.name)
  • Replaced console.error(...) with this.logger.error(...)

Why

NestJS Logger provides structured output with timestamps, context
labels, and log levels — making errors easier to trace in production
vs raw console.error output.

closes #779

[drips-wave]

@Danielobito009 Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

Learn more about application limits

[nanaf6203-bit]

LGTM