Fix Proof of Caching to skip system domains and test direct to server

Changes:
- Filter out system/template domains (cloudvpstemplate, cprapid, IP-based)
- Skip domains under /nobody/ user
- Test directly to server IP using --resolve (bypasses CDN/Cloudflare)
- Show server IP being tested for transparency
- Now correctly finds and tests actual user domains

modules/performance/nginx-varnish-manager.sh

@@ -170,11 +170,19 @@ get_cpanel_domains() {
                 continue
             fi
 
+            # Skip system/template domains
+            if [[ "$domain" =~ cloudvpstemplate\. ]] || \
+               [[ "$domain" =~ cprapid\. ]] || \
+               [[ "$domain" =~ ^[0-9\-]+\. ]] || \
+               [[ "$domain_file" =~ /nobody/ ]]; then
+                continue
+            fi
+
             # Only add if it looks like a domain (has a dot, not . or ..)
             if [[ "$domain" != "." && "$domain" != ".." && "$domain" =~ \. ]]; then
                 domains+=("$domain")
             fi
-        done < <(find /var/cpanel/userdata -type f 2>/dev/null | head -20)
+        done < <(find /var/cpanel/userdata -type f 2>/dev/null | head -50)
     fi
 
     printf '%s\n' "${domains[@]}"
@@ -723,16 +731,22 @@ proof_of_caching() {
 
     if [ -z "$domain" ]; then
         print_error "No domains found to test"
+        echo ""
+        echo "Tip: Make sure you have at least one active domain/website configured"
         return 0
     fi
 
+    # Get server IP for direct testing (bypasses CDN)
+    local server_ip=$(hostname -I | awk '{print $1}')
+
     echo "Testing domain: $domain"
+    echo "Server IP: $server_ip (testing direct to bypass CDN)"
     echo ""
 
     # Test common static files
     local test_files=(
-        "/favicon.ico"
         "/robots.txt"
+        "/favicon.ico"
         "/"
     )
 
@@ -744,12 +758,13 @@ proof_of_caching() {
         echo "Testing: $test_path"
 
         # First request - should be MISS
-        local first_request=$(curl -s -I --max-time 5 "$url" 2>/dev/null)
+        # Use --resolve to bypass CDN and test directly to server
+        local first_request=$(curl -s -I --max-time 5 --resolve "${domain}:80:${server_ip}" "$url" 2>/dev/null)
         local first_cache=$(echo "$first_request" | grep -i "X-Cache:" | awk '{print $2}' | tr -d '\r')
 
         # Second request - should be HIT
         sleep 0.5
-        local second_request=$(curl -s -I --max-time 5 "$url" 2>/dev/null)
+        local second_request=$(curl -s -I --max-time 5 --resolve "${domain}:80:${server_ip}" "$url" 2>/dev/null)
         local second_cache=$(echo "$second_request" | grep -i "X-Cache:" | awk '{print $2}' | tr -d '\r')
 
         # Check if we got valid responses