graph TD A[Start] --> B[Core Service Builder] B --> C[Read Workbook Format Prompt] C --> D[Parse SMTP Config] D --> E[Generate UUID Link Pattern] E --> F[Write Python Code] F --> G[Include Pandas Import] F --> H[Include Openpyxl Import] F --> I[Include SMTP Import] F --> J[Include UUID Import] G --> K[Combine Code Components] H --> K I --> K J --> K K --> L[Output reminder_service.py] L --> M[End] B --> N[Template Writer] N --> O[Generate Email Template] O --> P[Add CSS Styling] P --> Q[Insert Placeholders] Q --> R[Output reminder_email.html] B --> S[Endpoint Writer] S --> T[Write Flask/FastAPI Code] T --> U[Create Requirements.txt] U --> V[Generate Summary Block] V --> W[Output Files] B --> X[Runbook Author] X --> Y[Create Deployment Guide] Y --> Z[Document Environment Setup] Z --> AA[Output DEPLOY.md]