Autonomous systems: watchdog, smart deploy, site health, auto-heal, agent installer

- deploy/jarvis-watchdog.sh: self-healing watchdog (every 5 min)
  * monitors lsws/mysql/redis, restarts on failure
  * JARVIS HTTP self-check, restarts OLS on 5xx
  * disk/memory alerts inserted to DB
  * offline Proxmox VM agents restarted via qm guest exec
  * log rotation (1000 line cap)
- deploy/jarvis-deploy.sh: smart deploy with PHP validation
  * php8.3 syntax check on every changed .php file
  * auto-reverts git commit + inserts critical alert on syntax error
  * reloads OLS after JARVIS deploys
- api/endpoints/facts_collector.php: site health monitoring
  * curls all 7 managed sites every 3 min
  * stores up/down status in kb_facts
- api/endpoints/alerts.php: auto-heal + site alerts
  * dispatches restart_service commands when services down on agents
  * generates alerts from kb_facts site health data
- public_html/install-agent.sh: one-liner Linux agent installer
  * installs deps, downloads agent, registers with JARVIS, sets up systemd
- public_html/webhook.php: fixed infra deploy path to /opt/infra

api/endpoints/facts_collector.php

@@ -278,6 +278,39 @@ function collect_all(): array {
         $results['ollama'] = 'error: ' . $e->getMessage();
     }
 
+    // ── Site Health ───────────────────────────────────────────────────────
+    try {
+        $sites = [
+            'jarvis'       => 'https://jarvis.orbishosting.com',
+            'tomsjavajive' => 'https://tomsjavajive.com',
+            'epictravelexp'=> 'https://epictravelexpeditions.com',
+            'parkersling'  => 'https://parkerslingshot.epictravelexpeditions.com',
+            'orbishosting' => 'https://orbishosting.com',
+            'orbisportal'  => 'https://orbis.orbishosting.com',
+            'tomtomgames'  => 'https://tomtomgames.com',
+        ];
+        $down = [];
+        foreach ($sites as $key => $url) {
+            $ch = curl_init($url);
+            curl_setopt_array($ch, [
+                CURLOPT_RETURNTRANSFER => true,
+                CURLOPT_FOLLOWLOCATION => true,
+                CURLOPT_TIMEOUT        => 10,
+                CURLOPT_CONNECTTIMEOUT => 5,
+                CURLOPT_NOBODY         => true,
+            ]);
+            curl_exec($ch);
+            $code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+            curl_close($ch);
+            $status = ($code >= 200 && $code < 400) ? 'up' : "down-$code";
+            KBEngine::storeFact('sites', $key, $status, $url, 180);
+            if ($status !== 'up') $down[] = "$key($code)";
+        }
+        $results['sites'] = empty($down) ? 'all up' : 'DOWN: ' . implode(', ', $down);
+    } catch (Exception $e) {
+        $results['sites'] = 'error: ' . $e->getMessage();
+    }
+
     return $results;
 }