adding editing

src/Api/Router.php

@@ -65,6 +65,8 @@ class Router
                 $path === '/rules'        && $method === 'POST' => $this->createRule(),
                 preg_match('#^/rules/(\d+)$#', $path, $m) && $method === 'DELETE'
                     => $this->deleteEntity('rule', (int) $m[1]),
+                preg_match('#^/rules/(\d+)$#', $path, $m) && $method === 'PUT'
+                    => $this->updateRule((int) $m[1]),
 
                 $path === '/alerts'       && $method === 'GET'  => $this->getAlerts(),
                 $path === '/alerts/search' && $method === 'GET'  => $this->searchAlerts(),
@@ -185,6 +187,19 @@ class Router
         return ['status' => 'deleted', 'id' => $id];
     }
 
+    private function updateRule(int $id): mixed
+    {
+        $body = json_decode(file_get_contents('php://input'), true);
+        return $this->repo->updateRule(
+            id: $id,
+            name: $body['name'],
+            pattern: $body['pattern'],
+            severity: $body['severity'] ?? 'warning',
+            rateLimitSeconds: $body['rate_limit_seconds'] ?? null,
+            active: $body['active'] ?? true,
+        );
+    }
+
     private function getAlerts(): mixed
     {
         $limit = (int) ($_GET['limit'] ?? 100);