- Create platform_signup_service.py for signup flow operations - Create platform_pricing_service.py for pricing data operations - Refactor signup.py, pricing.py, letzshop_vendors.py to use services - Add # public markers to all platform endpoints - Update tests for correct mock paths and status codes Fixes architecture validation errors (API-002, API-003, SVC-006). 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>