Update Optimization from Emailed Data Protocol

- Changed workflow: user provides specific deals to analyze upfront
- Now downloads ALL attachments from ALL emails in past 2 weeks for thorough data coverage
- Added comprehensive dimensional analysis requirements:
  * Domain/site analysis
  * App bundle analysis
  * CTV channels & bundles
  * Time of day breakdown (hourly)
  * Day of week analysis
  * Geographic analysis (DMA-level)
  * Device type, platform/exchange, creative, audience segments
- Updated HTML email template with Elcano brand colors:
  * Dark Purple (#1A0B1E) for headers
  * Glaucous (#7272AB) for accents
  * Payne's Gray (#586F7C) for secondary text
  * Added CSS variables for consistent theming
- Added style guidelines for email formatting
- Emphasis on thoroughness to provide insights traders wouldn't have time to find

Author: claude