Thanks for sharing the project tree. Here’s a quick assessment plus a practical plan to tighten up the repo and set you up for production-ready behavior.

High-level assessment

• Monorepo feel: separate frontend (SPA-ish structure) and backend (API + workers) with a data/seed folder for dev.
• Frontend: a mix of static HTML pages (frontend/*.html/public) and a src/ that contains components, modules, and a service worker. This suggests a lightweight SPA or hybrid static site.
• Backend: Node.js (controllers, routes, services, models). Seeds currently exist in data/ for dev-only use. Prisma/Sequelize-like ORM is hinted in models.
• Data strategy: dev-only seeded JSONs in data/ – needs migration to a real database in production.
• Infrastructure: infra/ includes docker-compose and optional k8s/CI; uploads/ for media; service-worker.js indicates PWA support.
• Testing: tests/ with unit/e2e folders but no details yet—worth filling in.

Recommended next steps (prioritized)

1. Quick-start README and dev/run scripts

• Add a root README with:
  • Tech stack summary
  • How to run in dev (docker-compose or local node startup)
  • How to seed data and where it lives
  • How to build and serve frontend/backend
  • How to run tests
• Add package.json scripts at root (or in each subproject) to start frontend and backend in dev mode.

2. Move dev seeds toward a proper prod-ready data layer

• Create a migration plan to switch from data/*.json seeds to a real database (PostgreSQL/MySQL).
• Start with a simple Prisma/Sequelize model and a seed script that runs on first boot.
• Keep data/ as a local/dev seed repository temporarily, but document that it’s not used in prod.

3. Standardize environment and deployment

• Add a .env.example for both frontend and backend with clear variables (DB connection string, API base URL, JWT secret, etc.).
• Ensure .gitignore covers uploads/, node_modules/, dist/build outputs, and any secrets.
• Improve infra/ with a cohesive docker-compose.yml that wires frontend (static build or dev server), backend, a database, and a cache if needed.
• Add a basic CI workflow (lint, test, build) in infra/ ci-cd.

4. Improve frontend/backend hygiene and maintainability

• Consider TypeScript adoption for frontend and/or backend for safer refactors.
• Add ESLint/Prettier config and an npm script to run linting.
• Introduce a simple API client utility layer and consistent error handling (the repo already has error-handler.js; expand usage).
• If you’re not already, unify module boundaries: either keep the SPA as a single-page app with a router, or clearly separate server-rendered pages from client-side components.

5. Testing and quality gates

• Fill unit tests in tests/unit and end-to-end tests in tests/e2e (Playwright/Cypress).
• Add test commands to package.json and CI.

6. Security and UX basics

• Ensure password hashing (bcrypt) on the backend, proper auth middleware, and secure cookie/session handling.
• Audit publicly exposed endpoints and rate limiting.
• Accessibility and performance basics for static HTML pages (alt attributes, semantic tags, lazy loading of images).

Concrete deliverables you could implement next

• Patch 1: Root README.md
  • Overview, quickstart, commands (dev/build), data seeds, DB migration notes, and contribution guidelines.
• Patch 2: .env.example and docker-compose.yml
  • Variables for DB, API URLs, and app secrets; a simple three-service dev stack (frontend static server, backend, PostgreSQL with migrations).
• Patch 3: Data migration plan
  • A small script to migrate data/seed JSON into the new database schema (as a starting point for production).
• Patch 4: Linting/TS
  • Add ESLint + Prettier config and a small TypeScript setup (optional, but helpful).
• Patch 5: Tests skeleton
  • A couple of unit tests for controllers/services and a basic e2e test scaffold.

Would you like me to draft:

• A starter README with a minimal dev run flow?
• A docker-compose.yml sample that wires frontend, backend, and PostgreSQL?
• A migration plan outline with example Prisma/Sequelize models and seed script?

If you share which pieces you want to prioritize (e.g., “I want a solid dev docker-compose now” or “I need a production DB migration plan”), I can tailor concrete files and commands right away.