v1.7 Analytics Report & CI Coverage

What's new

• Analytics report attached to daily email: a new analysis step extracts insights from scraped jobs and sends them as a .txt attachment alongside the Excel file
• Improved city filtering: added precise city input for job filtering, with post-filter count logging for pipeline visibility
• Richer email subject: now includes job info directly in the SMTP subject line

CI / Testing

• Added unit test for AI analyze agent (test_ai_analyze.py)
• Added unit test for SMTP email sending (test_smtp.py), fully mocked with no secrets required
• Both tests integrated in ci.yml workflow
• Simplified workflow config by removing country+job params for cleaner test runs

Docs & Community

• Added CONTRIBUTING.md and SUPPORT.md
• Updated README with new architecture diagram, output screenshots and project file structure
• Updated yml.example template