feat: add db:seed command to package.json and update README.md for seeding reference data. Enhance job status handling in generation logic to support completed_partial status, improving error reporting and user feedback. Introduce new utility functions for job outcome resolution and non-retryable error detection, along with corresponding tests. Update database migration scripts to include new tables and fields for improved data management.
feat: add comprehensive AGENTS.md documentation and enhance UI components with new images and card layouts for sign-in and sign-up forms. Update routing to include landing and attempt routes, and improve sidebar functionality with state management.