- New slack_reporter.py: posts daily summary to Slack after each run
- Shows monthly investment, revenue (sumatorio + leadsxPPL) and margins
- Rankings of best/worst fco_ campaigns for last 5 days and current month
- Alerts for campaigns with losses > 200€ or margin < -50%
- MetricasDiarias uses yesterday's data (Google Ads lag)
- SLACK_WEBHOOK_URL added to config
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>