Implement Pharma ERP + POS System (Full Feature Buildout)

[syed-reza98]

Summary

Implement the Pharma ERP + POS system as described in the project documentation. This comprehensive task covers database, backend (API/services), frontend (UI), and all required compliance, audit, and reporting features necessary for a multi-tenant pharmaceutical ERP with integrated Point of Sale (POS), following the specifications and phased plan documented in:

• Executive Summary
• Full Implementation Plan
• Quick Start Guide
• README
• SRS
• SRS Cross-Validation

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Scope (High-Level)

• Extend schema: ERP items, lot/batch, FEFO, ledgers, procurement, sales, accounting, POS tables
• Backend: Inventory, procurement, sales, accounting, compliance, and POS service layers per provided code patterns
• API: RESTful endpoints per plan for ERP and POS domains
• UI: Next.js App Router screens for each ERP module, POS interface with offline support
• Security: RBAC, NextAuth, audit trails, maker-checker
• Testing: Service/unit logic and E2E for workflows as planned
• Reporting: Dashboards and KPI/trace/financial/expiry/stock-out reports
• Deployment: Staged go-live with user training per roadmap

Acceptance Criteria

• Follows all critical SRS requirements and implementation plan phases (Phase 1–6)
• Enforces multi-tenancy, regulatory controls, full traceability, and financial integration
• Core modules delivered and reviewed against documentation checklists
• Coverage includes compliance, audit, reporting, support, and training requirements
• A successful staged rollout to production (see deployment sections)

References

• Executive Summary: docs/pharma-erp/PHARMA_ERP_EXECUTIVE_SUMMARY.md
• Full Implementation Plan: docs/pharma-erp/PHARMA_ERP_POS_IMPLEMENTATION_PLAN.md
• Quick Start: docs/pharma-erp/PHARMA_ERP_QUICK_START.md
• ReadMe: docs/pharma-erp/PHARMA_ERP_README.md
• SRS: docs/pharma-erp/Software-Requirements-Specification-Pharma-Inventory-and-Accounts-ERP.md
• SRS Cross-Validation: docs/pharma-erp/ERP_SRS_CrossValidation.md

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Note: Break this issue into sub-tasks for each major phase/module (database, backend services, API, UI, compliance, testing, reporting, deployment, documentation). Link those sub-issues here for tracking once created.