feat: Initialize NestJS backend project with Prisma, core modules, configuration, and common utilities.

.env.example

@@ -0,0 +1,72 @@
+# ===========================================
+# Real Estate Agent Platform - Backend Environment Variables
+# Copy this file to .env and fill in your values
+# ===========================================
+
+# Application
+NODE_ENV=development
+PORT=3001
+APP_NAME="Real Estate Agent Platform"
+API_URL=http://localhost:3001
+FRONTEND_URL=http://localhost:3000
+ADMIN_URL=http://localhost:3002
+
+# Database (PostgreSQL)
+DATABASE_URL="postgresql://postgres:password@localhost:5432/real_estate_db?schema=public"
+
+# JWT Authentication
+JWT_SECRET=your-super-secret-jwt-key-change-in-production
+JWT_ACCESS_EXPIRATION=15m
+JWT_REFRESH_EXPIRATION=7d
+
+# Password Hashing
+BCRYPT_SALT_ROUNDS=12
+
+# Google OAuth
+GOOGLE_CLIENT_ID=your-google-client-id
+GOOGLE_CLIENT_SECRET=your-google-client-secret
+GOOGLE_CALLBACK_URL=http://localhost:3001/auth/google/callback
+
+# Facebook OAuth
+FACEBOOK_APP_ID=your-facebook-app-id
+FACEBOOK_APP_SECRET=your-facebook-app-secret
+FACEBOOK_CALLBACK_URL=http://localhost:3001/auth/facebook/callback
+
+# AWS S3 (File Storage)
+AWS_ACCESS_KEY_ID=your-aws-access-key
+AWS_SECRET_ACCESS_KEY=your-aws-secret-key
+AWS_REGION=us-east-1
+AWS_S3_BUCKET=your-s3-bucket-name
+
+# Email (SMTP / SendGrid)
+MAIL_HOST=smtp.sendgrid.net
+MAIL_PORT=587
+MAIL_USER=apikey
+MAIL_PASSWORD=your-sendgrid-api-key
+MAIL_FROM="Real Estate Platform <noreply@yourdomain.com>"
+
+# Stripe (Payments)
+STRIPE_SECRET_KEY=sk_test_your-stripe-secret-key
+STRIPE_WEBHOOK_SECRET=whsec_your-webhook-secret
+STRIPE_PUBLISHABLE_KEY=pk_test_your-stripe-publishable-key
+
+# Firebase (Push Notifications)
+FIREBASE_PROJECT_ID=your-firebase-project-id
+FIREBASE_CLIENT_EMAIL=firebase-adminsdk@your-project.iam.gserviceaccount.com
+FIREBASE_PRIVATE_KEY="-----BEGIN PRIVATE KEY-----\nYour-Private-Key\n-----END PRIVATE KEY-----"
+
+# Redis (Caching & Queue)
+REDIS_HOST=localhost
+REDIS_PORT=6379
+REDIS_PASSWORD=
+REDIS_DB=0
+
+# Rate Limiting
+THROTTLE_TTL=60
+THROTTLE_LIMIT=100
+
+# Logging
+LOG_LEVEL=debug
+
+# CORS
+CORS_ORIGINS=http://localhost:3000,http://localhost:3002