added transaction table, fixed signature auth. Monitor for bugs before rmoving bypass

.env copy

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+# Database Configuration
+DB_HOST=mysql-db
+DB_USER=app
+DB_PASS=4wdcsa2025!
+DB_NAME=4wdcsa
+SALT=4wdcsa
+HOST=https://beta.4wdcsa.co.za
+
+ENFORCE_HTTPS=true
+
+# Mailjet Email Service
+MAILJET_API_KEY=1a44f8d5e847537dbb8d3c76fe73a93c
+MAILJET_API_SECRET=ec98b45c53a7694c4f30d09eee9ad280
+MAILJET_FROM_EMAIL=info@4wdcsa.co.za
+MAILJET_FROM_NAME=4WDCSA
+ADMIN_EMAIL=info@4wdcsa.co.za
+FINANCE_EMAIL=louiseb@global.co.za
+POP_NOTIFICATION_EMAILS=chrispintoza@gmail.com,chrispintoza+pop@gmail.com,chrispintoza+4wdcsapop@gmail.com
+NOTIFICATION_ADDR=chrispintoza@gmail.com
+
+# Google OAuth
+GOOGLE_CLIENT_ID=948441222188-8qhboq2urr8o9n35mc70s5h2nhd52v0m.apps.googleusercontent.com
+GOOGLE_CLIENT_SECRET=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
+
+# Instagram (optional)
+INSTAGRAM_ACCESS_TOKEN=your-instagram-token
+
+# Application Settings
+APP_ENV=development
+APP_DEBUG=true
+APP_URL=https://beta.4wdcsa.co.za
+
+IKHOKHA_APP_ID=IKFLESZTKFM4HWWS76131L8HK9BYF96P
+IKHOKHA_APP_SECRET=gfoQTvXRXuzq6ArPHUS2CBFxtHtH1bxM
+IKHOKHA_ENDPOINT=https://api.ikhokha.com/public-api/v1/api/payment
+IKHOKHA_EXTERNAL_ENTITY_ID=4WDCSA
+IKHOKHA_CALLBACK_URL=https://beta.4wdcsa.co.za/src/api/ikhokha_webhook.php
+IKHOKHA_SUCCESS_URL=https://beta.4wdcsa.co.za/success
+IKHOKHA_FAILURE_URL=https://beta.4wdcsa.co.za/failure
+IKHOKHA_CANCEL_URL=https://beta.4wdcsa.co.za/cancel
+IKHOKHA_MODE=live
+IKHOKHA_BYPASS_SIGNATURE=true