Add traffic analysis (peak concurrent requests) to batch analyzer

- Display peak concurrent requests for each domain
- Helps identify which domains are busiest
- Provides context for optimization decisions
- Uses get_domain_peak_concurrent from php-scanner module
- Shows traffic alongside current/recommended max_children

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

modules/performance/php-fpm-batch-analyzer.sh

@@ -82,6 +82,7 @@ declare -a current_max_children
 declare -a recommended_max_children
 declare -a memory_impact
 declare -a needs_optimization
+declare -a peak_concurrent
 
 TOTAL_DOMAINS=0
 TOTAL_CURRENT_MEMORY=0
@@ -126,6 +127,11 @@ while IFS= read -r username; do
         impact=$((current_memory - recommended_memory))
         memory_impact[$TOTAL_DOMAINS]="$impact"
 
+        # Get peak concurrent requests for this domain
+        local peak
+        peak=$(get_domain_peak_concurrent "$domain" 2>/dev/null || echo "?")
+        peak_concurrent[$TOTAL_DOMAINS]="$peak"
+
         # Track totals
         TOTAL_CURRENT_MEMORY=$((TOTAL_CURRENT_MEMORY + current_memory))
         TOTAL_RECOMMENDED_MEMORY=$((TOTAL_RECOMMENDED_MEMORY + recommended_memory))
@@ -153,6 +159,7 @@ for idx in $(seq 1 $TOTAL_DOMAINS); do
     recommended="${recommended_max_children[$idx]}"
     impact="${memory_impact[$idx]}"
     optimize="${needs_optimization[$idx]}"
+    peak="${peak_concurrent[$idx]}"
 
     if [ "$current" == "ERROR" ]; then
         continue
@@ -162,6 +169,7 @@ for idx in $(seq 1 $TOTAL_DOMAINS); do
     if [ "$optimize" == "YES" ]; then
         cecho "${YELLOW}[$idx]${NC} $domain"
         cecho "     Owner: $owner"
+        cecho "     Peak concurrent requests: ${WHITE}$peak${NC}"
         cecho "     Current max_children: ${RED}$current${NC} → Recommended: ${GREEN}$recommended${NC}"
         cecho "     Memory impact: ${GREEN}+${impact}MB${NC} if optimized"
         cecho "     Status: ${YELLOW}NEEDS OPTIMIZATION${NC}"
@@ -169,6 +177,7 @@ for idx in $(seq 1 $TOTAL_DOMAINS); do
     else
         cecho "${GREEN}[$idx]${NC} $domain"
         cecho "     Owner: $owner"
+        cecho "     Peak concurrent requests: ${WHITE}$peak${NC}"
         cecho "     max_children: $current (already optimized)"
         cecho "     Status: ${GREEN}OK${NC}"
     fi