- Create prompts/brand_barclaycard.md with structured brand guidelines
covering logo, Card Portal, colors, typography, and accessibility
- Update ReferenceDocsService with get_barclaycard_brand_spec() method
- Update BrandAgent to use the new spec instead of raw reference docs
- Spec is ~15KB vs ~293KB of raw docs for more efficient analysis
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>