Varaverk: suggested cron hints left of every cron input

- vv_script_children() now calls vv_script_suggested_cron() per child,
  adding suggested_cron and suggested_label to each child entry
- Orch rows (non-event) and regular script child rows render a faint
  .vv-cron-hint span to the left of the cron input showing the suggested
  cron from the script's # Schedule: header
- Clicking the hint fills in the cron input (data-cron + onclick)
- Tooltip shows full "suggested_cron — label" string on hover
- .vv-cron-hint: color #444, brightens to #888 on hover

Plugin/usr/local/emhttp/plugins/varaverk/include/scheduler.php

@@ -400,16 +400,19 @@ function vv_script_children(string $orchPath, array $schedule): array {
         $seen[$rel]  = true;
         $entry       = $schedule[$rel] ?? ['enabled' => false, 'cron' => ''];
         $conf        = $confMap[$rel] ?? ['array' => null, 'enabled' => null, 'managed' => false];
+        $suggested   = vv_script_suggested_cron("$scriptsDir/$rel");
         $children[]  = [
-            'id'           => $rel,
-            'label'        => basename($rel, '.sh'),
-            'desc'         => vv_script_description("$scriptsDir/$rel"),
-            'type'         => 'script',
-            'enabled'      => (bool)($entry['enabled'] ?? false),
-            'cron'         => $entry['cron'] ?? '',
-            'log_enabled'  => (bool)($entry['log_enabled'] ?? false),
-            'conf_managed' => $conf['managed'],
-            'conf_enabled' => $conf['enabled'],  // null if not in any *_SCRIPTS array
+            'id'              => $rel,
+            'label'           => basename($rel, '.sh'),
+            'desc'            => vv_script_description("$scriptsDir/$rel"),
+            'type'            => 'script',
+            'enabled'         => (bool)($entry['enabled'] ?? false),
+            'cron'            => $entry['cron'] ?? '',
+            'log_enabled'     => (bool)($entry['log_enabled'] ?? false),
+            'conf_managed'    => $conf['managed'],
+            'conf_enabled'    => $conf['enabled'],  // null if not in any *_SCRIPTS array
+            'suggested_cron'  => $suggested['cron'],
+            'suggested_label' => $suggested['label'],
         ];
     };