Fix WEB HOST stats never populating (DO server had no monitoring agent installed) and a timezone bug in freshness checks (America/Chicago default timezone + strtotime() on naive UTC MySQL timestamps caused sites/proxmox/ollama facts to never refresh, and could have suppressed the KB intent generator's scheduled runs)

api/endpoints/facts_collector.php

@@ -21,13 +21,18 @@ function collect_all(): array {
 
     // Returns true if a fact category has been updated within $secs seconds.
     // Prevents expensive external calls when data is still fresh.
+    // Comparison is done entirely in SQL (via NOW()) rather than PHP's time()/strtotime()
+    // — this file's config.php sets date_default_timezone_set('America/Chicago'), which
+    // makes strtotime() misinterpret MySQL's naive (UTC) datetime strings as being in
+    // Chicago time, throwing every freshness check off by the UTC offset (previously
+    // caused "sites" to always look artificially fresh and never actually refresh).
     $fresh = function(string $cat, int $secs): bool {
         $row = JarvisDB::query(
-            'SELECT updated_at FROM kb_facts WHERE category=? ORDER BY updated_at DESC LIMIT 1',
-            [$cat]
+            'SELECT (updated_at > DATE_SUB(NOW(), INTERVAL ? SECOND)) AS is_fresh FROM kb_facts WHERE category=? ORDER BY updated_at DESC LIMIT 1',
+            [$secs, $cat]
         );
-        if (empty($row[0]['updated_at'])) return false;
-        return (time() - strtotime($row[0]['updated_at'])) < $secs;
+        if (empty($row)) return false;
+        return (bool) $row[0]['is_fresh'];
     };