add readme and .env files

.env.dev

@@ -0,0 +1,31 @@
+# ===========================================
+# Oil Customer Gateway - DEVELOPMENT Environment
+# ===========================================
+
+# Database Configuration
+POSTGRES_USERNAME=postgres
+POSTGRES_PASSWORD=password
+POSTGRES_SERVER=192.168.1.204
+POSTGRES_PORT=5432
+POSTGRES_DBNAME=eamco
+
+# JWT Configuration
+# Generate with: python -c "import secrets; print(secrets.token_hex(32))"
+JWT_SECRET_KEY=CHANGE_ME_GENERATE_A_SECURE_KEY
+JWT_ALGORITHM=HS256
+# Longer expiry for development convenience
+JWT_ACCESS_TOKEN_EXPIRE_MINUTES=525600
+
+# Authorize.Net (Sandbox/Test credentials)
+AUTH_NET_API_LOGIN_ID=9U6w96gZmX
+AUTH_NET_TRANSACTION_KEY=94s6Qy458mMNJr7G
+
+# SMTP Configuration
+SMTP_SERVER=smtp.gmail.com
+SMTP_PORT=587
+SMTP_USERNAME=CHANGE_ME_TO_YOUR_EMAIL
+SMTP_PASSWORD=CHANGE_ME_TO_YOUR_APP_PASSWORD
+SMTP_FROM_EMAIL=CHANGE_ME_TO_YOUR_EMAIL
+
+# Frontend URL
+FRONTEND_URL=http://localhost:3000