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- Add notifications across all channels (Email, Discord, Slack, Telegram, Pushover, Webhook) for outdated versions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

resources/views/components/callout.blade.php

@@ -1,13 +1,13 @@
-@props(['type' => 'warning', 'title' => 'Warning', 'class' => ''])
+@props(['type' => 'warning', 'title' => 'Warning', 'class' => '', 'dismissible' => false, 'onDismiss' => null])
 
 @php
     $icons = [
         'warning' => '<svg class="w-5 h-5 text-yellow-600 dark:text-yellow-400" fill="currentColor" viewBox="0 0 20 20"><path fill-rule="evenodd" d="M8.257 3.099c.765-1.36 2.722-1.36 3.486 0l5.58 9.92c.75 1.334-.213 2.98-1.742 2.98H4.42c-1.53 0-2.493-1.646-1.743-2.98l5.58-9.92zM11 13a1 1 0 11-2 0 1 1 0 012 0zm-1-8a1 1 0 00-1 1v3a1 1 0 002 0V6a1 1 0 00-1-1z" clip-rule="evenodd"></path></svg>',
-        
+
         'danger' => '<svg class="w-5 h-5 text-red-600 dark:text-red-400" fill="currentColor" viewBox="0 0 20 20"><path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z" clip-rule="evenodd"></path></svg>',
-        
+
         'info' => '<svg class="w-5 h-5 text-blue-600 dark:text-blue-400" fill="currentColor" viewBox="0 0 20 20"><path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-7-4a1 1 0 11-2 0 1 1 0 012 0zM9 9a1 1 0 000 2v3a1 1 0 001 1h1a1 1 0 100-2v-3a1 1 0 00-1-1H9z" clip-rule="evenodd"></path></svg>',
-        
+
         'success' => '<svg class="w-5 h-5 text-green-600 dark:text-green-400" fill="currentColor" viewBox="0 0 20 20"><path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zm3.707-9.293a1 1 0 00-1.414-1.414L9 10.586 7.707 9.293a1 1 0 00-1.414 1.414l2 2a1 1 0 001.414 0l4-4z" clip-rule="evenodd"></path></svg>'
     ];
 
@@ -42,12 +42,12 @@
     $icon = $icons[$type] ?? $icons['warning'];
 @endphp
 
-<div {{ $attributes->merge(['class' => 'p-4 border rounded-lg ' . $colorScheme['bg'] . ' ' . $colorScheme['border'] . ' ' . $class]) }}>
+<div {{ $attributes->merge(['class' => 'relative p-4 border rounded-lg ' . $colorScheme['bg'] . ' ' . $colorScheme['border'] . ' ' . $class]) }}>
     <div class="flex items-start">
         <div class="flex-shrink-0">
             {!! $icon !!}
         </div>
-        <div class="ml-3">
+        <div class="ml-3 {{ $dismissible ? 'pr-8' : '' }}">
             <div class="text-base font-bold {{ $colorScheme['title'] }}">
                 {{ $title }}
             </div>
@@ -55,5 +55,15 @@
                 {{ $slot }}
             </div>
         </div>
+        @if($dismissible && $onDismiss)
+            <button type="button" @click.stop="{{ $onDismiss }}"
+                    class="absolute top-2 right-2 p-1 rounded hover:bg-black/10 dark:hover:bg-white/10 transition-colors"
+                    aria-label="Dismiss">
+                <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="2"
+                     stroke="currentColor" class="w-4 h-4 {{ $colorScheme['text'] }}">
+                    <path stroke-linecap="round" stroke-linejoin="round" d="M6 18L18 6M6 6l12 12" />
+                </svg>
+            </button>
+        @endif
     </div>
 </div>