feat: add stats polling interval + correct health polling default to Settings

- Add 'Stats Polling Interval' (default 30s) field to Health -> Configure ->
  Global Settings, alongside the existing 'Polling Interval' which is now
  relabeled 'Health Check Polling Interval' with the correct default of 60s.
- Persist/load statsPollingInterval via the health-settings localStorage key
  (same mechanism as the other settings).
- Wire the persisted statsPollingInterval into DC.POLL.STATS so the resource
  monitor / monitoring widgets honor the configured cadence (seconds -> ms).
- Update the setup wizard disk-safety 'Recommended after setup' list to
  mention both polling intervals.
- Rebuild dist bundles (core.js, features.js) and bump service-worker cache.

status/index.html

@@ -705,6 +705,8 @@
           <strong style="font-size: 0.9rem;">📋 Recommended after setup</strong>
           <ul style="margin: 8px 0 0; padding-left: 20px; font-size: 0.85rem; color: var(--muted); line-height: 1.6;">
             <li>Open <strong>Health → Configure → Global Settings</strong></li>
+            <li>Set a <strong>health check polling interval</strong> (default: 60s)</li>
+            <li>Set a <strong>stats polling interval</strong> (default: 30s)</li>
             <li>Set a <strong>data retention period</strong> (default: 30 days)</li>
             <li>Cap <strong>max entries per service</strong> (default: 500)</li>
             <li>Set a <strong>disk-usage warning threshold</strong> (default: 80%)</li>

status/js/globals.js

@@ -1,10 +1,28 @@
 // ===== DASHBOARD CONSTANTS =====
+// Honor persisted health retention settings for polling cadences so the
+// Settings → Health → Global Settings panel actually takes effect. The
+// STATS interval (resource/container stat sampling) is driven from the
+// user-configurable statsPollingInterval. HEALTH is the lightweight card
+// badge refresh and stays at its fast default unless overridden.
+(function applyHealthPollingSettings() {
+  try {
+    var raw = (typeof localStorage !== 'undefined' && localStorage.getItem('dashcaddy-health-settings')) || null;
+    if (raw) {
+      var s = JSON.parse(raw);
+      // values are stored in seconds; DC.POLL expects milliseconds
+      if (s.statsPollingInterval && s.statsPollingInterval >= 5 && s.statsPollingInterval <= 3600) {
+        window.__DC_STATS_OVERRIDE = s.statsPollingInterval * 1000;
+      }
+    }
+  } catch (_) { /* ignore — fall back to defaults below */ }
+})();
+
 const DC = {
   NAME: 'DashCaddy',
   POLL: {
     DASHBOARD:  10000,   // 10s — main refreshAll interval
     LOGS:       3000,    // 3s  — log viewer updates
-    STATS:      5000,    // 5s  — resource monitor refresh
+    STATS:      (typeof window !== 'undefined' && window.__DC_STATS_OVERRIDE) || 5000,   // 5s default — resource monitor refresh (overridable via Settings → Health)
     WEATHER:    600000,  // 10m — weather widget refresh
     HEALTH:     1000,    // 1s  — card health badge refresh
     DEPLOY_SSL: 5000,    // 5s  — SSL cert check during deploy

status/js/health-check.js

@@ -34,26 +34,31 @@
           <div class="panel-empty"><span class="empty-icon">⚙️</span> Loading configuration...</div>
         </div>
 
-        <!-- Global Settings: retention, polling interval, disk-usage threshold -->
+        <!-- Global Settings: retention, polling intervals, max entries, disk-usage threshold -->
         <div id="health-global-settings" style="margin-top: 16px; padding: 16px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card-base);">
           <h4 style="margin: 0 0 4px;">🌍 Global Settings</h4>
           <p class="text-muted-sm" style="margin: 0 0 12px;">Applies to all health checks. Settings are stored locally in this browser.</p>
           <div style="display: grid; grid-template-columns: 1fr 1fr; gap: 12px;">
             <div>
-              <label class="text-muted-sm">Data Retention (days)</label>
+              <label class="text-muted-sm">Health Check Polling Interval (seconds)</label>
-              <input type="number" id="health-setting-retention" value="30" min="1" max="3650" class="form-input" />
+              <input type="number" id="health-setting-interval" value="60" min="5" max="3600" class="form-input" />
-              <div style="font-size: 0.72rem; color: var(--muted); margin-top: 2px;">Health history older than this is pruned.</div>
+              <div style="font-size: 0.72rem; color: var(--muted); margin-top: 2px;">How often each service's health endpoint is checked.</div>
             </div>
             <div>
-              <label class="text-muted-sm">Polling Interval (seconds)</label>
+              <label class="text-muted-sm">Stats Polling Interval (seconds)</label>
-              <input type="number" id="health-setting-interval" value="30" min="5" max="3600" class="form-input" />
+              <input type="number" id="health-setting-stats-interval" value="30" min="5" max="3600" class="form-input" />
-              <div style="font-size: 0.72rem; color: var(--muted); margin-top: 2px;">How often each service is checked.</div>
+              <div style="font-size: 0.72rem; color: var(--muted); margin-top: 2px;">How often container statistics (CPU/memory) are sampled.</div>
             </div>
             <div>
               <label class="text-muted-sm">Max Entries Per Service</label>
               <input type="number" id="health-setting-max-entries" value="500" min="10" max="100000" class="form-input" />
               <div style="font-size: 0.72rem; color: var(--muted); margin-top: 2px;">Cap on stored history records per service.</div>
             </div>
+            <div>
+              <label class="text-muted-sm">Data Retention (days)</label>
+              <input type="number" id="health-setting-retention" value="30" min="1" max="3650" class="form-input" />
+              <div style="font-size: 0.72rem; color: var(--muted); margin-top: 2px;">Health history older than this is pruned.</div>
+            </div>
             <div>
               <label class="text-muted-sm">Disk-Usage Warning (%)</label>
               <input type="number" id="health-setting-disk-threshold" value="80" min="50" max="99" class="form-input" />
@@ -136,14 +141,15 @@
   const formCancel = document.getElementById('health-form-cancel');
   const formSave = document.getElementById('health-form-save');
 
-  // ---- Global health settings (retention, polling interval, disk threshold) ----
+  // ---- Global health settings (retention, polling intervals, max entries, disk threshold) ----
   const HEALTH_SETTINGS_KEY = 'dashcaddy-health-settings';
-  const HEALTH_DEFAULTS = { retentionDays: 30, pollingInterval: 30, maxEntriesPerService: 500, diskUsageThreshold: 80 };
+  const HEALTH_DEFAULTS = { retentionDays: 30, pollingInterval: 60, statsPollingInterval: 30, maxEntriesPerService: 500, diskUsageThreshold: 80 };
   const globalSaveBtn = document.getElementById('health-global-save');
   const globalResetBtn = document.getElementById('health-global-reset');
   const globalStatusSpan = document.getElementById('health-global-status');
   const retentionInput = document.getElementById('health-setting-retention');
   const intervalInput = document.getElementById('health-setting-interval');
+  const statsIntervalInput = document.getElementById('health-setting-stats-interval');
   const maxEntriesInput = document.getElementById('health-setting-max-entries');
   const diskThresholdInput = document.getElementById('health-setting-disk-threshold');
 
@@ -161,6 +167,7 @@
     const s = loadHealthSettings();
     if (retentionInput) retentionInput.value = s.retentionDays;
     if (intervalInput) intervalInput.value = s.pollingInterval;
+    if (statsIntervalInput) statsIntervalInput.value = s.statsPollingInterval;
     if (maxEntriesInput) maxEntriesInput.value = s.maxEntriesPerService;
     if (diskThresholdInput) diskThresholdInput.value = s.diskUsageThreshold;
   }
@@ -169,6 +176,7 @@
     const settings = {
       retentionDays: Math.max(1, Math.min(3650, parseInt(retentionInput?.value) || HEALTH_DEFAULTS.retentionDays)),
       pollingInterval: Math.max(5, Math.min(3600, parseInt(intervalInput?.value) || HEALTH_DEFAULTS.pollingInterval)),
+      statsPollingInterval: Math.max(5, Math.min(3600, parseInt(statsIntervalInput?.value) || HEALTH_DEFAULTS.statsPollingInterval)),
       maxEntriesPerService: Math.max(10, Math.min(100000, parseInt(maxEntriesInput?.value) || HEALTH_DEFAULTS.maxEntriesPerService)),
       diskUsageThreshold: Math.max(50, Math.min(99, parseInt(diskThresholdInput?.value) || HEALTH_DEFAULTS.diskUsageThreshold))
     };

status/sw.js

@@ -1,4 +1,4 @@
-const CACHE = 'dashcaddy-shell-d17fb082db';
+const CACHE = 'dashcaddy-shell-f0ebe6ce4f';
 const PRECACHE = [
   '/',
   '/index.html',