feat(proxy): add Traefik version tracking with notifications and dismissible UI warnings

- Add automated Traefik version checking job running weekly on Sundays
- Implement version detection from running containers and comparison with versions.json
- Add notifications across all channels (Email, Discord, Slack, Telegram, Pushover, Webhook) for outdated versions
- Create dismissible callout component with localStorage persistence
- Display cross-branch upgrade warnings (e.g., v3.5 -> v3.6) with changelog links
- Show patch update notifications within same branch
- Add warning icon that appears when callouts are dismissed
- Prevent duplicate notifications during proxy restart by adding restarting parameter
- Fix notification spam with transition-based logic for status changes
- Enable system email settings by default in development mode
- Track last saved/applied proxy settings to detect configuration drift

app/Actions/Proxy/StartProxy.php

@@ -13,7 +13,7 @@ class StartProxy
 {
     use AsAction;
 
-    public function handle(Server $server, bool $async = true, bool $force = false): string|Activity
+    public function handle(Server $server, bool $async = true, bool $force = false, bool $restarting = false): string|Activity
     {
         $proxyType = $server->proxyType();
         if ((is_null($proxyType) || $proxyType === 'NONE' || $server->proxy->force_stop || $server->isBuildServer()) && $force === false) {
@@ -22,7 +22,10 @@ class StartProxy
         $server->proxy->set('status', 'starting');
         $server->save();
         $server->refresh();
-        ProxyStatusChangedUI::dispatch($server->team_id);
+
+        if (! $restarting) {
+            ProxyStatusChangedUI::dispatch($server->team_id);
+        }
 
         $commands = collect([]);
         $proxy_path = $server->proxyPath();