Implement backend authentication and user management with JWT

.env.example

@@ -0,0 +1,3 @@
+VITE_API_URL=
+VITE_ZEGO_APP_ID=
+VITE_ZEGO_SERVER_SECRET=

.gitignore

@@ -12,6 +12,17 @@ dist
 dist-ssr
 *.local
 
+# Environment variables
+.env
+.env.local
+.env.production
+
+# Uploads
+uploads/
+
+# Server build
+server/dist/
+
 # Editor directories and files
 .vscode/*
 !.vscode/extensions.json

.vite/deps/_metadata.json

@@ -0,0 +1,8 @@
+{
+  "hash": "48037c4b",
+  "configHash": "a57dfbf4",
+  "lockfileHash": "5ccddd87",
+  "browserHash": "6f809531",
+  "optimized": {},
+  "chunks": {}
+}

.vite/deps/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}

DEMO_PRESENTATION.md

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+# Nexus Platform Demo Presentation
+
+## Slide 1: Platform Overview
+**Nexus** is a comprehensive platform connecting entrepreneurs and investors for seamless collaboration.
+
+**Key Features:**
+- Real-time messaging and video calling
+- Document sharing with e-signatures
+- Meeting scheduling with conflict detection
+- Secure payment processing
+- AI-powered matchmaking (planned)
+
+**Target Users:** Entrepreneurs seeking funding, Investors seeking opportunities
+
+---
+
+## Slide 2: Authentication & Role-based Dashboards
+- JWT-based secure authentication with 2FA
+- Separate dashboards for Entrepreneurs and Investors
+- Profile management with bio, experience, and preferences
+- Role-based access control throughout the platform
+
+**Demo Flow:**
+1. Register as Entrepreneur → Redirected to Entrepreneur Dashboard
+2. Register as Investor → Redirected to Investor Dashboard
+3. Login with email/password + OTP verification
+
+---
+
+## Slide 3: Meeting Scheduling & Video Calling
+- Create meetings with conflict detection (no double booking)
+- Calendar view of all scheduled meetings
+- Real-time video calling with WebRTC (ZegoCloud integration)
+- Audio/video toggle, room joining, call ending
+
+**Demo Flow:**
+1. Schedule meeting → Appears in calendar
+2. Accept/Reject meeting → Status updates
+3. Join meeting → Video call opens with correct room ID
+
+---
+
+## Slide 4: Document Processing Chamber
+- Secure document upload (Multer storage)
+- PDF preview functionality
+- E-signature capture with react-signature-canvas
+- Document status tracking (draft → review → signed)
+
+**Demo Flow:**
+1. Upload document → Stored in database
+2. Open signature modal → Draw signature → Save
+3. Document status changes to signed
+
+---
+
+## Slide 5: Payment Section & Transaction History
+- Stripe sandbox integration for deposits
+- Mock withdrawal and transfer functionality
+- Transaction history with status tracking (pending/completed/failed)
+- Secure payment processing with error handling
+
+**Demo Flow:**
+1. Deposit funds using Stripe test card
+2. View transaction in history
+3. Attempt withdrawal (mock success)
+
+---
+
+## Slide 6: Security Features
+- Form validation and XSS/SQL injection protection (Zod + sanitize-html)
+- Bcrypt password hashing
+- Secure JWT tokens with expiration
+- 2FA OTP via Nodemailer (demo mode fallback)
+- Role-based authorization on all protected routes
+
+**Demo Flow:**
+1. Try submitting XSS in forms → Sanitized
+2. Access investor route as entrepreneur → 403 Forbidden
+3. Login without 2FA → Blocked
+
+---
+
+## Slide 7: Tech Stack & Architecture
+**Frontend:** React + TypeScript + Vite + Tailwind CSS
+**Backend:** Node.js + Express + TypeScript + MongoDB
+**Real-time:** Socket.IO for messaging/calling
+**Payments:** Stripe API
+**Video:** ZegoCloud WebRTC
+**Deployment:** Vercel (frontend) + Render (backend)
+
+**Architecture Diagram:**
+```
+[Frontend - Vercel]
+    ↓ API calls
+[Backend - Render]
+    ↓
+[MongoDB Atlas] - Users, Meetings, Documents, Transactions
+    ↓
+[Socket.IO] - Real-time events
+    ↓
+[ZegoCloud] - Video calling
+[Stripe] - Payments
+```
+
+---
+
+## Slide 8: Live Demo Flow
+1. **Registration:** Create Entrepreneur account → Dashboard loads
+2. **Profile Setup:** Update bio and preferences
+3. **Meeting Scheduling:** Create meeting with investor → Calendar updates
+4. **Video Call:** Join meeting → Real-time audio/video
+5. **Document Sharing:** Upload NDA → Sign electronically
+6. **Payments:** Process deposit → View in transaction history
+7. **Messaging:** Send real-time messages
+8. **Notifications:** Receive alerts for all activities
+
+---
+
+## Slide 9: Deployment & Scaling
+**Current Deployment:**
+- Frontend: Vercel (SPA with API rewrites)
+- Backend: Render (Node.js with auto-scaling)
+- Database: MongoDB Atlas (cloud-hosted)
+
+**Production Ready Features:**
+- Environment variable configuration
+- Error logging and monitoring
+- Rate limiting and security headers
+- API documentation (Swagger UI)
+- Health check endpoints
+
+**Future Scaling:**
+- Redis for session management
+- AWS S3 for file storage
+- Load balancing
+- Microservices architecture

eslint.config.js

@@ -23,6 +23,8 @@ export default tseslint.config(
         'warn',
         { allowConstantExport: true },
       ],
+      '@typescript-eslint/no-unused-vars': 'off',
+      '@typescript-eslint/no-explicit-any': 'off',
     },
   }
 );