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- Add notifications across all channels (Email, Discord, Slack, Telegram, Pushover, Webhook) for outdated versions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/Console/Kernel.php

@@ -5,6 +5,7 @@ namespace App\Console;
 use App\Jobs\CheckAndStartSentinelJob;
 use App\Jobs\CheckForUpdatesJob;
 use App\Jobs\CheckHelperImageJob;
+use App\Jobs\CheckTraefikVersionJob;
 use App\Jobs\CleanupInstanceStuffsJob;
 use App\Jobs\PullChangelog;
 use App\Jobs\PullTemplatesFromCDN;
@@ -83,6 +84,8 @@ class Kernel extends ConsoleKernel
 
             $this->scheduleInstance->job(new RegenerateSslCertJob)->twiceDaily();
 
+            $this->scheduleInstance->job(new CheckTraefikVersionJob)->weekly()->sundays()->at('00:00')->timezone($this->instanceTimezone)->onOneServer();
+
             $this->scheduleInstance->command('cleanup:database --yes')->daily();
             $this->scheduleInstance->command('uploads:clear')->everyTwoMinutes();
         }