Add Loadwatch Health Analyzer for system monitoring analysis

NEW FEATURE: Loadwatch Health Analyzer
- Comprehensive system health analysis from loadwatch monitoring logs
- Time-range analysis: 1h, 6h, 24h, 7d, 30d options
- Intelligent problem detection and trending

CAPABILITIES:
- Memory pressure detection (low available memory, high swap usage)
- CPU saturation analysis (idle %, iowait, steal time)
- Load average trending and threshold detection
- Process issue detection (zombie processes, high CPU/MEM consumers)
- MySQL performance monitoring (slow queries, thread counts)
- Network connection analysis
- Historical trending across snapshots (3-minute intervals)

IMPLEMENTATION:
- modules/diagnostics/loadwatch-analyzer.sh - Main analyzer script
- Handles symlinked loadwatch directories
- Parses 7 log sections: alerts, summary, memory, CPU, tasks, MySQL, network
- Generates detailed reports with actionable recommendations
- Saves reports to tmp/ directory for review

INTEGRATION:
- Added to Performance & Diagnostics menu (option 10)
- Time range selection submenu for user-friendly access
- Updated README.md with feature documentation and usage examples

ANALYSIS FEATURES:
- Swap threshold alerts (>= 50% usage)
- CPU saturation detection (< 10% idle)
- High I/O wait warnings (> 20%)
- Zombie process tracking
- Memory availability trending (avg/min/max)
- Top CPU consumers aggregated across period

Perfect for:
- Post-incident investigation
- Capacity planning
- Performance trending
- System health monitoring
- Identifying resource bottlenecks

Works with servers that have loadwatch monitoring enabled
(logs in /root/loadwatch or /var/log/loadwatch)

launcher.sh

@@ -539,7 +539,8 @@ show_performance_menu() {
     echo ""
     echo -e "${BOLD}Logs & Diagnostics:${NC}"
     echo -e "  ${MAGENTA}9)${NC} Log Analyzer                - Parse and analyze system logs"
-    echo -e "  ${MAGENTA}10)${NC} Email Queue Monitor        - Mail queue analysis"
+    echo -e "  ${MAGENTA}10)${NC} Loadwatch Health Analyzer   - System health from monitoring logs"
+    echo -e "  ${MAGENTA}11)${NC} Email Queue Monitor         - Mail queue analysis"
     echo ""
     echo -e "  ${RED}0)${NC} Back to Main Menu"
     echo ""
@@ -1346,6 +1347,40 @@ handle_wp_security_menu() {
     done
 }
 
+# Loadwatch analyzer handler with time range selection
+handle_loadwatch_analyzer() {
+    show_banner
+    echo -e "${MAGENTA}${BOLD}📊 Loadwatch Health Analyzer${NC}"
+    echo ""
+    echo -e "Select time range for analysis:"
+    echo ""
+    echo -e "  ${CYAN}1)${NC} Last 1 Hour      - Recent system activity"
+    echo -e "  ${CYAN}2)${NC} Last 6 Hours     - Mid-term trending"
+    echo -e "  ${CYAN}3)${NC} Last 24 Hours    - Full day analysis"
+    echo -e "  ${CYAN}4)${NC} Last 7 Days      - Weekly patterns"
+    echo -e "  ${CYAN}5)${NC} Last 30 Days     - Monthly overview"
+    echo ""
+    echo -e "  ${RED}0)${NC} Back"
+    echo ""
+    echo -e "${CYAN}──────────────────────────────────────────────────────────────${NC}"
+    echo -n "Select time range: "
+
+    read -r range_choice
+
+    case $range_choice in
+        1) run_module "diagnostics" "loadwatch-analyzer.sh" "-r" "1h" ;;
+        2) run_module "diagnostics" "loadwatch-analyzer.sh" "-r" "6h" ;;
+        3) run_module "diagnostics" "loadwatch-analyzer.sh" "-r" "24h" ;;
+        4) run_module "diagnostics" "loadwatch-analyzer.sh" "-r" "7d" ;;
+        5) run_module "diagnostics" "loadwatch-analyzer.sh" "-r" "30d" ;;
+        0) return ;;
+        *)
+            echo -e "${RED}Invalid option${NC}"
+            sleep 1
+            ;;
+    esac
+}
+
 # Performance submenu handler
 handle_performance_menu() {
     while true; do
@@ -1362,7 +1397,8 @@ handle_performance_menu() {
             7) run_module "performance" "apache-performance.sh" ;;
             8) run_module "performance" "php-fpm-monitor.sh" ;;
             9) run_module "performance" "log-analyzer.sh" ;;
-            10) run_module "performance" "email-queue-monitor.sh" ;;
+            10) handle_loadwatch_analyzer ;;
+            11) run_module "performance" "email-queue-monitor.sh" ;;
             0) return ;;
             *) echo -e "${RED}Invalid option${NC}"; sleep 1 ;;
         esac