Fix memory capacity output parsing - was showing domain names instead of numbers

Problem:
- Output showed: 'Total Server RAM: pickledperilMB'
- Output showed: 'Required if ALL pools: pickledperil.comMB'
- Domain names appeared where numbers should be

Root cause:
- calculate_server_memory_capacity returns multiple lines:
  Line 1: Summary (250|1776|14|HEALTHY|...)
  Line 2+: Details (pickledperil.com|pickledperil|5|50MB|250MB)
- Code used tail -1 to get 'last line' thinking it was summary
- Actually got details line, parsed domain/username as numbers\!

Fix:
- Changed tail -1 to head -1 to get first line (summary)
- Changed 2>&1 to 2>/dev/null to suppress stderr
- Store details separately with tail -n +2
- Updated details display to include domain column (5 fields not 4)
- Now shows: DOMAIN, USER, MAX_CHILDREN, AVG/PROCESS, MAX_MEMORY

Result:
- Numbers display correctly
- Detailed breakdown shows domain → user mapping

modules/performance/php-optimizer.sh

@@ -870,11 +870,11 @@ check_server_memory_capacity() {
     echo ""
 
     local result
-    result=$(calculate_server_memory_capacity 2>&1)
+    result=$(calculate_server_memory_capacity 2>/dev/null)
 
-    # Parse result (main output is last line)
+    # Parse result - first line is summary, remaining lines are details
     local main_result
-    main_result=$(echo "$result" | tail -1)
+    main_result=$(echo "$result" | head -1)
 
     local total_required total_ram percentage status details
     total_required=$(echo "$main_result" | cut -d'|' -f1)
@@ -882,6 +882,9 @@ check_server_memory_capacity() {
     percentage=$(echo "$main_result" | cut -d'|' -f3)
     status=$(echo "$main_result" | cut -d'|' -f4)
 
+    # Get details (all lines after first)
+    details=$(echo "$result" | tail -n +2)
+
     # Display summary
     cecho "${CYAN}═══════════════════════════════════════════════════════════════════${NC}"
     cecho "${WHITE}${BOLD}MEMORY CAPACITY ANALYSIS${NC}"
@@ -930,17 +933,13 @@ check_server_memory_capacity() {
         cecho "${CYAN}─────────────────────────────────────────────────────────────────────${NC}"
         echo ""
 
-        # Get details from stderr of previous call
+        printf "%-30s %-20s %12s %12s %12s\n" "DOMAIN" "USER" "MAX_CHILDREN" "AVG/PROCESS" "MAX_MEMORY"
-        local details_output
+        printf "%-30s %-20s %12s %12s %12s\n" "------------------------------" "--------------------" "------------" "------------" "------------"
-        details_output=$(echo "$result" | head -n -1)
 
-        printf "%-20s %12s %12s %12s\n" "USER" "MAX_CHILDREN" "AVG/PROCESS" "MAX_MEMORY"
+        while IFS='|' read -r domain username max_children avg_mb pool_max_mb; do
-        printf "%-20s %12s %12s %12s\n" "--------------------" "------------" "------------" "------------"
+            [ -z "$domain" ] && continue
-
+            printf "%-30s %-20s %12s %12s %12s\n" "$domain" "$username" "$max_children" "$avg_mb" "$pool_max_mb"
-        while IFS='|' read -r username max_children avg_mb pool_max_mb; do
+        done <<< "$details"
-            [ -z "$username" ] && continue
-            printf "%-20s %12s %12s %12s\n" "$username" "$max_children" "$avg_mb" "$pool_max_mb"
-        done <<< "$details_output"
 
         echo ""
     fi