- Add api_logs table (migration 0007) and ApiLog model
- Add web/lib/api_logger.py — httpx wrapper that records every outbound call
- Wire api_logger into vk_sync, vk_catalog, and connections test endpoints
- Add /admin/logs page with filters (service, method, status, time range, URL search) and expandable request/response detail
- Add "Логи" nav link for admin users
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
