v1.8 Location accuracy, country filter & ui email

• Fix geo scoring: job location passed to scoring agent, no more fabricated cities for remote jobs
• Added country_no filter to exclude unwanted countries from scraping
• Email report rebuilt as HTML with per-job cards, mobile-friendly
• Simplified email subject: "SnapplAI - search term + date"
• Fix xlsx attachment filename extension
• load_dotenv(override=True) across all src modules
• Added CI job for scraper testing
• Added CLAUDE.md with repo workflow standards
• Updated README with new output screenshot and completed v2 roadmap