Enterprise-Ready AI MVP Upgrade + Admin Analytics Dashboard (AI + RAG + Voice)

Enterprise-Level Code Hardening
Fix small bugs

Any typos, wrong return objects, unused variables

Model ID corrections (e.g., Anthropic model naming)

Cleanup error messages

Enforce safe configuration

No default secrets in production

App must fail fast if JWT, Mongo URI, API keys are missing

Validate .env properly

Security Enhancements

Add helmet

Add strict CORS rules

Add rate limiting on:

Login

Chat/LLM requests

File uploads

Validate file upload size and MIME type

Error & Logging Improvements

Replace console.log with Pino or Winston logging

Add unique requestId for tracking

Add standardized error format

Add a /health endpoint

Testing Foundation + CI/CD
Backend Tests (Jest + Supertest)

At least 3–5 tests:

Login

Create Study Session

Chat endpoint

Quiz generator endpoint

✔️ Frontend Tests (optional but prefered)

Zustand store test (loadUser)

Basic rendering

CI/CD (GitHub Actions)

Install

Lint

Run tests

Build backend + frontend

CI must fail if tests fail.

Admin Analytics Dashboard (Internal Only)

Create a new admin page:
/admin/dashboard (admin role only)

Dashboard shows:

A. API Usage & Daily Cost Tracking

Track usage of:

Claude (chat)

OpenAI Embeddings

Deepgram (STT)

Lemonfox / TTS

For each provider:

| Date | Requests | Tokens/Minutes | Estimated Cost |

Developer must:

Add tracking hooks in backend wherever API calls happen

Store metrics daily in MongoDB

Display on dashboard as:

Table view (daily cost)

Line chart (cost over time)

B. User Signups (Daily)

Track:

| Date | New Free Users |

Show a simple line chart + daily table.

C. Paid Subscribers (Daily + Total)

Show:

Daily:

| Date | New Paid Users | Total Paid Active |

Monthly (MRR):

| Plan | Active Users | Monthly Revenue |

If payments use Stripe (or similar), read from DB.

Charts + summary cards:

Total paid subscribers

Total revenue this month (MRR)

Daily new paid users

D. Business KPIs Section

Show as tiles:

Total Users

Total Paid Users

Monthly Recurring Revenue (MRR)

API Cost Yesterday

Profit Yesterday (Revenue – API Cost)

Documentation & Cleanup

Provide:

ARCHITECTURE.md
(Auth → Upload → Chunk → Embeddings → Retrieval → Chat → Quiz flow)

DEPLOYMENT.md
(Required env vars, build commands, recommended production settings)

Notes on security improvements you made.

Tech Stack (already built)
Backend

Node.js (Express)

MongoDB/Mongoose

JWT + Google OAuth

Anthropic Claude

OpenAI embeddings

Deepgram STT

Lemonfox TTS

RAG pipeline

Frontend

React + TypeScript

Vite

Tailwind + Radix UI

Zustand

Axios API layer

Who I’m Looking For

Strong Node.js + express experience

Very comfortable with security practices

Knows testing + CI

Can understand existing RAG architecture

Clean code & documentation style