CRITICAL FIX: traffic percentage calculation - use peak concurrent instead of log parsing

The old approach counted lines from ALL files in a log directory and divided
one domain's requests by that massive total. This gave every domain wrong
percentages like 2% when they should be 80-99%.

NEW APPROACH: Use peak concurrent values directly
- Peak concurrent is a reliable indicator of traffic intensity
- Calculate: domain_peak / sum_of_all_peaks * 100
- Much more accurate than trying to parse logs across different control panels

Example:
- Domain A peak: 421 concurrent -> 99% of server traffic ✅
- Domain B peak: 2 concurrent -> 1% of server traffic ✅

This makes far more sense than the old broken approach.

lib/php-calculator-improved.sh

@@ -413,69 +413,38 @@ get_domain_traffic_percentage() {
     domain_count=$(echo "$all_domains" | grep -v "^$" | wc -l)
     [ "$domain_count" -lt 1 ] && domain_count=1
 
-    # SIMPLIFIED APPROACH: Use equal distribution by default
-    # (Advanced traffic analysis requires domain-specific access logs which are control-panel dependent)
-    local equal_share=$((100 / domain_count))
+    # CRITICAL FIX: Use peak concurrent to estimate traffic percentage
+    # (Access log parsing is unreliable across control panels)
+    # Peak concurrent is a reliable indicator of traffic intensity
 
-    # Try to find domain-specific access log (best effort, not required)
-    # This varies by control panel:
-    # - cPanel: /var/log/apache2/domlogs/DOMAIN or /home/user/logs/DOMAIN-access_log
-    # - Plesk: /var/www/vhosts/DOMAIN/logs/access_log
-    # - InterWorx: /home/user/var/DOMAIN/logs/transfer.log
+    # Get this domain's peak concurrent
+    local domain_peak
+    domain_peak=$(get_domain_peak_concurrent "$domain" 2>/dev/null || echo "0")
+    [ -z "$domain_peak" ] && domain_peak=0
 
-    local domain_requests=0
-    local total_requests=0
+    # Calculate total peak concurrent across ALL domains
+    local total_peak=0
+    local domain_check
+    while IFS= read -r domain_check; do
+        [ -z "$domain_check" ] && continue
+        local peak_val
+        peak_val=$(get_domain_peak_concurrent "$domain_check" 2>/dev/null || echo "0")
+        [ -z "$peak_val" ] && peak_val=0
+        total_peak=$((total_peak + peak_val))
+    done <<< "$all_domains"
 
-    # Best-effort search for domain access log
-    local access_log
-    access_log=$(find /var/log/apache2/domlogs -name "*$domain*" -type f 2>/dev/null | head -1)
-
-    if [ -z "$access_log" ]; then
-        access_log=$(find /var/www/vhosts -name "access_log" -path "*$domain*" -type f 2>/dev/null | head -1)
-    fi
-
-    if [ -z "$access_log" ]; then
-        access_log=$(find /home -name "transfer.log" -path "*$domain*" -type f 2>/dev/null | head -1)
-    fi
-
-    # If we found a domain-specific log, try to calculate percentage
-    if [ -n "$access_log" ] && [ -f "$access_log" ]; then
-        # Count lines in this domain's access log
-        domain_requests=$(tail -n 100000 "$access_log" 2>/dev/null | wc -l)
-
-        # Only use calculated percentage if we have significant data
-        if [ "$domain_requests" -gt 10 ]; then
-            # IMPROVED: Try to sum requests from multiple domain logs (not just 2)
-            # This is more accurate for multi-domain servers
-            total_requests=0
-            local log_count=0
-
-            # Find all domain logs in the same location as our domain log
-            local log_dir
-            log_dir=$(dirname "$access_log")
-
-            # Count requests from all logs in this directory
-            while IFS= read -r log; do
-                [ -f "$log" ] || continue
-                local log_requests
-                log_requests=$(tail -n 100000 "$log" 2>/dev/null | wc -l)
-                total_requests=$((total_requests + log_requests))
-                log_count=$((log_count + 1))
-            done < <(find "$log_dir" -maxdepth 1 -type f -name "*" 2>/dev/null | head -20)
-
-            # Only calculate percentage if we found at least 2 logs
-            if [ "$log_count" -ge 2 ] && [ "$total_requests" -gt 0 ]; then
-                local percentage=$((domain_requests * 100 / total_requests))
+    # Calculate percentage based on peak concurrent
+    if [ "$total_peak" -gt 0 ]; then
+        local percentage=$((domain_peak * 100 / total_peak))
         [ "$percentage" -lt 1 ] && percentage=1
         [ "$percentage" -gt 99 ] && percentage=99
-                echo "$percentage|$domain_requests|Based on $log_count domain logs"
+        echo "$percentage|$domain_peak|Based on peak concurrent (traffic intensity)"
         return
     fi
-        fi
-    fi
 
     # Fallback: equal distribution among all domains
-    # This is the SAFEST approach when we can't reliably calculate percentages
+    # This is the SAFEST approach when we can't calculate percentages
+    local equal_share=$((100 / domain_count))
     echo "$equal_share|0|Using equal distribution ($domain_count domains) - safest assumption"
 }