fix: 系统资源面板未开实时监控时按页面刷新间隔自动更新

- 新增 systemRefreshTimer，切换至系统Tab时自动启动
- 未开实时监控 → 按页面「刷新间隔」秒数定时刷新系统资源
- 开启实时监控 → 按实时间隔秒数刷新（原有逻辑不变）
- 关闭实时监控 → 切回页面刷新间隔继续更新
- 修改页面刷新间隔 → 同步更新系统资源刷新频率
- 新增 watchdog.sh 守护脚本，端口掉线自动重启

templates_full.txt

@@ -929,6 +929,7 @@
         // Tab 切换
         // 系统资源监控变量（必须先声明）
         let realtimeTimer = null;
+        let systemRefreshTimer = null;
         let realtimeInterval = 2; // 秒
         let lastAlertTime = 0; // 上次警告时间
         let thresholds = { cpu: 80, cpu_temp: 80, memory: 85, disk: 90, interval: 60 };
@@ -957,6 +958,12 @@
                 document.getElementById('processListSection').classList.add('hidden');
             }
             
+            // 离开系统Tab时关闭非实时刷新定时器
+            if (tab !== 'system' && systemRefreshTimer) {
+                clearInterval(systemRefreshTimer);
+                systemRefreshTimer = null;
+            }
+            
             if (tab === 'cron') {
                 loadCronTasks();
             }
@@ -965,6 +972,8 @@
                 loadDesktopNotifySetting();
                 renderEmailRules();
                 loadSystemStats();
+                // 启动系统资源定时刷新（按页面刷新间隔）
+                startSystemRefresh();
             }
         }
 
@@ -1281,14 +1290,17 @@
             const toggle = document.getElementById('realtimeToggle');
             const indicator = document.getElementById('realtimeIndicator');
             
+            // 先停止系统定时刷新
+            if (systemRefreshTimer) {
+                clearInterval(systemRefreshTimer);
+                systemRefreshTimer = null;
+            }
+            
             if (checked) {
                 toggle.classList.add('active');
                 indicator.classList.remove('hidden');
-                // 立即加载一次
                 loadSystemStats();
-                // 启动定时器
                 realtimeTimer = setInterval(loadSystemStats, realtimeInterval * 1000);
-                // 如果进程列表开关也开启，则显示并加载
                 if (document.getElementById('showProcessListCheck').checked) {
                     document.getElementById('processListSection').classList.remove('hidden');
                     loadTopProcesses();
@@ -1297,14 +1309,28 @@
                 toggle.classList.remove('active');
                 indicator.classList.add('hidden');
                 document.getElementById('processListSection').classList.add('hidden');
-                // 停止定时器
                 if (realtimeTimer) {
                     clearInterval(realtimeTimer);
                     realtimeTimer = null;
                 }
+                // 关闭实时后，按页面刷新间隔继续刷新系统资源
+                startSystemRefresh();
             }
         }
         
+        function startSystemRefresh() {
+            // 先停掉旧定时器
+            if (systemRefreshTimer) {
+                clearInterval(systemRefreshTimer);
+                systemRefreshTimer = null;
+            }
+            // 如果在实时监控模式则不启动（由realtimeTimer负责）
+            if (document.getElementById('realtimeCheck').checked) return;
+            // 按页面刷新间隔定时刷新
+            const intervalSec = parseInt(document.getElementById('refreshInterval').value) || 30;
+            systemRefreshTimer = setInterval(loadSystemStats, intervalSec * 1000);
+        }
+        
         function toggleProcessList() {
             const checked = document.getElementById('showProcessListCheck').checked;
             const realtimeChecked = document.getElementById('realtimeCheck').checked;
@@ -2751,6 +2777,11 @@
             
             clearInterval(refreshTimer);
             refreshTimer = setInterval(() => { if (currentTab === 'projects') loadProjects(); }, seconds * 1000);
+            
+            // 如果当前在系统Tab且非实时模式，更新系统刷新间隔
+            if (currentTab === 'system' && !document.getElementById('realtimeCheck').checked) {
+                startSystemRefresh();
+            }
         }
 
         setInterval(() => {

watchdog.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+# project-panel 守护脚本 - 进程挂了自动重启
+SERVICE_DIR="/home/openclaw/.openclaw/workspace-hz4th_coder/works/project-panel"
+PYTHON="/home/hz1/miniconda3/envs/openclaw/bin/python3.12"
+PORT=16022
+LOG="$SERVICE_DIR/logs/watchdog.log"
+
+echo "[$(date '+%Y-%m-%d %H:%M:%S')] 守护进程启动，监控端口 $PORT" >> "$LOG"
+
+while true; do
+    if ! ss -tlnp 2>/dev/null | grep -q ":$PORT "; then
+        echo "[$(date '+%Y-%m-%d %H:%M:%S')] 检测到 $PORT 端口离线，重启服务..." >> "$LOG"
+        cd "$SERVICE_DIR"
+        mkdir -p logs
+        nohup "$PYTHON" app.py > logs/app.log 2>&1 &
+        sleep 3
+        if ss -tlnp 2>/dev/null | grep -q ":$PORT "; then
+            echo "[$(date '+%Y-%m-%d %H:%M:%S')] 服务重启成功" >> "$LOG"
+        else
+            echo "[$(date '+%Y-%m-%d %H:%M:%S')] 服务重启失败！" >> "$LOG"
+        fi
+    fi
+    sleep 10
+done