Refactor payment verification to manual workflow and add comprehensive cleanup tools

Major changes:
• Remove BTCPay Server integration in favor of SilverPAY manual verification
• Add test data cleanup mechanisms (API endpoints and shell scripts)
• Fix compilation errors in TestController (IdentityReference vs CustomerIdentity)
• Add deployment automation scripts for Hostinger VPS
• Enhance integration testing with comprehensive E2E validation
• Add Blazor components and mobile-responsive CSS for admin interface
• Create production environment configuration scripts

Key Features Added:
• Manual payment verification through Admin panel Order Details
• Bulk test data cleanup with proper cascade handling
• Deployment automation with systemd service configuration
• Comprehensive E2E testing suite with SilverPAY integration validation
• Mobile-first admin interface improvements

Security & Production:
• Environment variable configuration for production secrets
• Proper JWT and VAPID key management
• SilverPAY API integration with live credentials
• Database cleanup and maintenance tools

🤖 Generated with Claude Code

Co-Authored-By: Claude <noreply@anthropic.com>

test_e2e_comprehensive.sh

@@ -230,14 +230,14 @@ else
     print_result "SilverPAY Order" "FAIL" "$(echo $SILVERPAY_RESPONSE | head -c 50)"
 fi
 
-# Test 5.2: Payment Fallback to BTCPay
-echo -n "Testing BTCPay fallback... "
+# Test 5.2: Payment Creation via LittleShop (using SilverPAY)
+echo -n "Testing payment creation via LittleShop... "
 if [ ! -z "$ORDER_ID" ]; then
     PAYMENT_RESPONSE=$(auth_request "POST" "/api/orders/$ORDER_ID/payments" '{"currency":"BTC"}')
-    if echo "$PAYMENT_RESPONSE" | grep -q "walletAddress"; then
-        print_result "Payment Creation" "PASS" "Fallback working"
+    if echo "$PAYMENT_RESPONSE" | grep -q "walletAddress\|paymentAddress\|address"; then
+        print_result "Payment Creation" "PASS" "SilverPAY integration working"
     else
-        print_result "Payment Creation" "FAIL" "No wallet address"
+        print_result "Payment Creation" "FAIL" "No payment address returned"
     fi
 else
     print_result "Payment Creation" "SKIP" "No order created"
@@ -326,16 +326,19 @@ else
     print_result "SilverPAY Webhook" "FAIL" "Webhook failed"
 fi
 
-# Test 8.2: BTCPay Webhook
-echo -n "Testing BTCPay webhook... "
-RESPONSE=$(curl -s -o /dev/null -w "%{http_code}" -X POST "$LITTLESHOP_URL/api/orders/payments/webhook" \
-    -H "Content-Type: application/json" \
-    -d '{"invoiceId":"test-invoice","status":"complete"}')
-
-if [ "$RESPONSE" = "200" ] || [ "$RESPONSE" = "400" ]; then
-    print_result "BTCPay Webhook" "PASS" ""
+# Test 8.2: SilverPAY Status Check (replacing BTCPay webhook test)
+echo -n "Testing SilverPAY order status check... "
+# Test if we can check order status via SilverPAY
+if [ ! -z "$SILVERPAY_ORDER_ID" ]; then
+    STATUS_RESPONSE=$(curl -s -X GET "$SILVERPAY_URL/api/v1/orders/$SILVERPAY_ORDER_ID" \
+        -H "X-API-Key: test-api-key")
+    if echo "$STATUS_RESPONSE" | grep -q "id"; then
+        print_result "SilverPAY Status Check" "PASS" ""
+    else
+        print_result "SilverPAY Status Check" "FAIL" "Could not get order status"
+    fi
 else
-    print_result "BTCPay Webhook" "FAIL" "HTTP $RESPONSE"
+    print_result "SilverPAY Status Check" "SKIP" "No SilverPAY order created"
 fi
 
 echo ""