feat(Settings): add ping services scheduler settings for cache refresh interval and enable/disable functionality

frontend/src/SettingsPage.jsx

@@ -77,6 +77,8 @@ export default function SettingsPage() {
   const [pingServicesServerId, setPingServicesServerId] = useState('');
   const [pingServicesGatewayIp, setPingServicesGatewayIp] = useState('');
   const [pingServicesCacheSeconds, setPingServicesCacheSeconds] = useState('');
+  const [pingServicesSchedulerEnabled, setPingServicesSchedulerEnabled] = useState(true);
+  const [pingServicesSchedulerIntervalMinutes, setPingServicesSchedulerIntervalMinutes] = useState('2');
   const [interfaceSpeedTestProtocol, setInterfaceSpeedTestProtocol] = useState('tcp');
   const [interfaceSpeedTestDurationSeconds, setInterfaceSpeedTestDurationSeconds] = useState('10');
   const [interfaceSpeedTestCacheMinutes, setInterfaceSpeedTestCacheMinutes] = useState('');
@@ -236,6 +238,12 @@ export default function SettingsPage() {
             ? String(data.pingServicesCacheSeconds)
             : ''
         );
+        setPingServicesSchedulerEnabled(data?.pingServicesSchedulerEnabled !== false);
+        setPingServicesSchedulerIntervalMinutes(
+          data?.pingServicesSchedulerIntervalMinutes != null
+            ? String(data.pingServicesSchedulerIntervalMinutes)
+            : '2'
+        );
         setInterfaceSpeedTestProtocol(
           String(data?.interfaceSpeedTestProtocol || 'tcp').toLowerCase() ===
             'udp'
@@ -356,6 +364,11 @@ export default function SettingsPage() {
           0,
           parseInt(pingServicesCacheSeconds, 10) || 0
         ),
+        pingServicesSchedulerEnabled: Boolean(pingServicesSchedulerEnabled),
+        pingServicesSchedulerIntervalMinutes: Math.max(
+          1,
+          Math.min(1440, parseInt(pingServicesSchedulerIntervalMinutes, 10) || 2)
+        ),
         interfaceSpeedTestProtocol:
           interfaceSpeedTestProtocol === 'udp' ? 'udp' : 'tcp',
         interfaceSpeedTestDurationSeconds: Math.max(
@@ -695,6 +708,33 @@ export default function SettingsPage() {
                     min={0}
                   />
                 </div>
+                <div className="mb-3">
+                  <div className="form-check form-switch mb-2">
+                    <input
+                      className="form-check-input"
+                      type="checkbox"
+                      id="pingServicesSchedulerEnabled"
+                      checked={pingServicesSchedulerEnabled}
+                      onChange={(e) => setPingServicesSchedulerEnabled(e.target.checked)}
+                      disabled={saving}
+                    />
+                    <label className="form-check-label" htmlFor="pingServicesSchedulerEnabled">
+                      Планировщик: обновлять кеш пингов по расписанию
+                    </label>
+                  </div>
+                  <FormField
+                    label="Интервал обновления (мин)"
+                    name="pingServicesSchedulerIntervalMinutes"
+                    type="number"
+                    value={pingServicesSchedulerIntervalMinutes}
+                    onChange={setPingServicesSchedulerIntervalMinutes}
+                    placeholder="2"
+                    helpText="Как часто планировщик обновляет кеш пингов (1–1440 мин). По умолчанию 2 мин."
+                    disabled={saving}
+                    min={1}
+                    max={1440}
+                  />
+                </div>
                 {pingServicesSource === 'router' && (
                   <div className="row g-2">
                     <div className="col-md-6">

frontend/src/components/SettingsModal.jsx

@@ -27,6 +27,8 @@ export default function SettingsModal({ open, onClose }) {
   const [pingServicesServerId, setPingServicesServerId] = useState('');
   const [pingServicesGatewayIp, setPingServicesGatewayIp] = useState('');
   const [pingServicesCacheSeconds, setPingServicesCacheSeconds] = useState('');
+  const [pingServicesSchedulerEnabled, setPingServicesSchedulerEnabled] = useState(true);
+  const [pingServicesSchedulerIntervalMinutes, setPingServicesSchedulerIntervalMinutes] = useState('2');
   const [serversList, setServersList] = useState([]);
   const [interfaceSpeedTestProtocol, setInterfaceSpeedTestProtocol] = useState('tcp');
   const [interfaceSpeedTestDurationSeconds, setInterfaceSpeedTestDurationSeconds] = useState('10');
@@ -69,6 +71,12 @@ export default function SettingsModal({ open, onClose }) {
             ? String(data.pingServicesCacheSeconds)
             : ''
         );
+        setPingServicesSchedulerEnabled(data?.pingServicesSchedulerEnabled !== false);
+        setPingServicesSchedulerIntervalMinutes(
+          data?.pingServicesSchedulerIntervalMinutes != null
+            ? String(data.pingServicesSchedulerIntervalMinutes)
+            : '2'
+        );
         setInterfaceSpeedTestProtocol(
           String(data?.interfaceSpeedTestProtocol || 'tcp').toLowerCase() ===
             'udp'
@@ -157,6 +165,11 @@ export default function SettingsModal({ open, onClose }) {
           0,
           parseInt(pingServicesCacheSeconds, 10) || 0
         ),
+        pingServicesSchedulerEnabled: Boolean(pingServicesSchedulerEnabled),
+        pingServicesSchedulerIntervalMinutes: Math.max(
+          1,
+          Math.min(1440, parseInt(pingServicesSchedulerIntervalMinutes, 10) || 2)
+        ),
         interfaceSpeedTestProtocol:
           interfaceSpeedTestProtocol === 'udp' ? 'udp' : 'tcp',
         interfaceSpeedTestDurationSeconds: Math.max(
@@ -370,6 +383,33 @@ export default function SettingsModal({ open, onClose }) {
                   min={0}
                 />
               </div>
+              <div className="mb-2">
+                <div className="form-check form-switch mb-1">
+                  <input
+                    className="form-check-input"
+                    type="checkbox"
+                    id="modalPingServicesSchedulerEnabled"
+                    checked={pingServicesSchedulerEnabled}
+                    onChange={(e) => setPingServicesSchedulerEnabled(e.target.checked)}
+                    disabled={loading || saving}
+                  />
+                  <label className="form-check-label small" htmlFor="modalPingServicesSchedulerEnabled">
+                    Планировщик: обновлять кеш пингов по расписанию
+                  </label>
+                </div>
+                <FormField
+                  label="Интервал обновления (мин)"
+                  name="pingServicesSchedulerIntervalMinutes"
+                  type="number"
+                  value={pingServicesSchedulerIntervalMinutes}
+                  onChange={setPingServicesSchedulerIntervalMinutes}
+                  placeholder="2"
+                  helpText="Как часто обновлять кеш (1–1440 мин). По умолчанию 2."
+                  disabled={loading || saving}
+                  min={1}
+                  max={1440}
+                />
+              </div>
               {pingServicesSource === 'router' && (
                 <div className="row g-2">
                   <div className="col-md-6">