Fix memory capacity calculation to iterate through domains not just users

Problem:
- calculate_server_memory_capacity() showed '0MB required'
- Only iterated through users, called find_fpm_pool_config() with username only
- cPanel uses domain-based pool configs (domain.conf not username.conf)
- Result: No pools found, 0MB calculated

Fix:
- Added nested loop: users → domains
- Pass both username AND domain to find_fpm_pool_config()
- Extract pool name from config file to get actual process memory
- Use get_fpm_memory_usage(pool_name) directly instead of calculate_memory_per_process()
- Added domain to details output format

Changes:
- Lines 745-800: Rewrote user iteration to include domain loop
- Now correctly finds pools like pickledperil.com.conf
- Calculates actual memory usage per pool

Result:
- Memory capacity analysis now shows real data
- Proper OOM risk assessment

lib/php-analyzer.sh

@@ -742,50 +742,61 @@ calculate_server_memory_capacity() {
     local pool_count=0
     local details=""
 
-    # Iterate through all users
+    # Iterate through all users and their domains
     while IFS= read -r username; do
         [ -z "$username" ] && continue
 
-        # Find FPM pool config
-        local pool_config
-        pool_config=$(find_fpm_pool_config "$username")
+        # Get all domains for this user
+        local user_domains
+        user_domains=$(get_user_domains "$username")
 
-        if [ -z "$pool_config" ] || [ ! -f "$pool_config" ]; then
-            continue
-        fi
+        while IFS= read -r domain; do
+            [ -z "$domain" ] && continue
 
-        pool_count=$((pool_count + 1))
+            # Find FPM pool config for this domain
+            local pool_config
+            pool_config=$(find_fpm_pool_config "$username" "$domain")
 
-        # Get max_children from pool config
-        local max_children
-        max_children=$(grep "^pm.max_children" "$pool_config" | awk -F'=' '{print $2}' | tr -d ' ')
+            if [ -z "$pool_config" ] || [ ! -f "$pool_config" ]; then
+                continue
+            fi
 
-        if [ -z "$max_children" ] || [ "$max_children" -eq 0 ]; then
-            max_children=5  # Safe default if not set
-        fi
+            pool_count=$((pool_count + 1))
 
-        # Get average memory per process
-        local memory_stats
-        memory_stats=$(calculate_memory_per_process "$username")
+            # Get max_children from pool config
+            local max_children
+            max_children=$(grep "^pm.max_children" "$pool_config" | awk -F'=' '{print $2}' | tr -d ' ')
 
-        local avg_kb
-        avg_kb=$(echo "$memory_stats" | cut -d'|' -f1)
+            if [ -z "$max_children" ] || [ "$max_children" -eq 0 ]; then
+                max_children=5  # Safe default if not set
+            fi
 
-        if [ "$avg_kb" -eq 0 ]; then
+            # Get average memory per process from pool name
+            local pool_name
+            pool_name=$(grep "^\[" "$pool_config" | tr -d '[]' | head -1)
+
+            # Get memory usage for this specific pool
+            local avg_kb=0
+            if [ -n "$pool_name" ]; then
+                avg_kb=$(get_fpm_memory_usage "$pool_name")
+            fi
+
+            if [ -z "$avg_kb" ] || [ "$avg_kb" -eq 0 ]; then
             # No active processes, estimate 50MB per process (conservative)
             avg_kb=$((50 * 1024))
         fi
 
-        local avg_mb=$((avg_kb / 1024))
+            local avg_mb=$((avg_kb / 1024))
 
-        # Calculate max memory for this pool
-        local pool_max_mb=$((max_children * avg_mb))
-        total_required_mb=$((total_required_mb + pool_max_mb))
-        total_max_children=$((total_max_children + max_children))
+            # Calculate max memory for this pool
+            local pool_max_mb=$((max_children * avg_mb))
+            total_required_mb=$((total_required_mb + pool_max_mb))
+            total_max_children=$((total_max_children + max_children))
 
-        # Add to details
-        details+="$username|$max_children|${avg_mb}MB|${pool_max_mb}MB"$'\n'
+            # Add to details
+            details+="$domain|$username|$max_children|${avg_mb}MB|${pool_max_mb}MB"$'\n'
 
+        done <<< "$user_domains"
     done <<< "$users"
 
     # Calculate percentage