nsc-events-fullstack_31_132_add-product-design-document

[NahomAlemu]

Summary & Changes 📃

• Resolves: Feature Request: Create a product design document for NSC Events app #132

• Summary:

  • 🔨 Adds a comprehensive Product Design Document (PDD) - First draft to serve as the canonical reference for the NSC Events platform
  • 👀 Contributors and stakeholders can now understand the full system architecture, features, data model, and technical
    decisions in one place
  • 🗨️ Document covers: technical stack (NestJS/Next.js 14/PostgreSQL), all API endpoints, core features (event discovery,
    creation, registration, authentication), role-based permissions, and identified gaps/technical debt

• Changes:

  • ✅ Added Product-design.md with 9 major sections covering the entire platform
  • ✅ Documented technical architecture (backend, frontend, infrastructure)
  • ✅ Included link to interactive ERD on dbdiagram.io
  • ✅ Defined user roles (Admin, Creator, User) with permissions matrix
  • ✅ Listed all API endpoints organized by domain
  • ✅ Identified feature gaps (notifications, calendar sync, QR check-in, etc.)
  • ✅ Documented technical debt items (JWT storage, migrations, auth)
  • 🛠️ No breaking changes
  • 📝 This is documentation only — no code changes

How to Test 🧪

1. Steps to Reproduce:
   • Step 1: Open Product-design.md in the repository root
   • Step 2: Review the document structure and content
   • Step 3: Verify the ERD link works: https://dbdiagram.io/d/NSC-Events-ERD-696e9c7ad6e030a02480f84a
2. Expected Behavior: Document renders correctly with proper markdown formatting, tables, and links

Checklist ✅

• I have tested this PR locally and it works as expected.
• This PR resolves an issue (Resolves #132).
• Reviewers, assignees(self), tags, and labels are correctly assigned.
• Squash commits and enable auto-merge if approved.