feat: bot detection logic

[tkotthakota-adobe]

Implemented comprehensive bot protection detection and alerting in the Task Processor to identify when sites are blocked by bot protection services (Cloudflare, Akamai, Imperva, etc.) and prevent unnecessary processing.

• 1. CloudWatch-Based Detection
     Single Source of Truth: Query CloudWatch logs from Content Scraper for bot protection events
     Filter Pattern: "[BOT-BLOCKED]" "${siteId}" with time-based filtering
     Time Window: onboardStartTime to capture all scraping activity during onboarding
• 2. Fail-Fast Bot Protection Check
     Early Detection: Check for bot protection BEFORE fetching scrape results
     Abort Immediately: Return early with bot protection details when detected

Logs:
"[BOT-BLOCKED] Bot protection detected"
https://spacecat.coralogix.com/#/query-new/logs?id=kHDgr5BOZMaJ9LAOhMZCV&page=0&startTime=1768321614979&endTime=1768408014979

[BOT-BLOCKED] Bot protection detected: 94 URLs blocked (from CloudWatch logs) for site https://abbvie.com

Tests:
https://cq-dev.slack.com/archives/C060T2PPF8V/p1768350318773359?thread_ts=1768348500.256659&cid=C060T2PPF8V

https://jira.corp.adobe.com/browse/SITES-37727

[github-actions]

This PR will trigger no release when merged.

[codecov]

Codecov Report

❌ Patch coverage is 99.41406% with 3 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/tasks/opportunity-status-processor/handler.js	95.38%	3 Missing ⚠️

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