feat: homelab deployment - NPM + IONOS DNS + monitoring + NAS backup

- Restructured docker-compose for Nginx Proxy Manager (no custom nginx)
- Added domain wordly.art configuration
- Added Prometheus + Grafana monitoring stack with pre-configured dashboards
- Added PostgreSQL backup script to NAS (daily/weekly/monthly rotation)
- Added alert rules for backend, system, and Docker metrics
- Updated deployment guide for NPM + IONOS DNS homelab setup
- Added marketing plan document
- PDF translator and watermark support
- Enhanced middleware, routes, and translator modules

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

frontend/src/components/ui/language-switcher.tsx

@@ -14,6 +14,17 @@ import { useI18n, type Locale } from "@/lib/i18n";
 const languages: { value: Locale; label: string; flag: string }[] = [
   { value: "en", label: "English", flag: "🇬🇧" },
   { value: "fr", label: "Français", flag: "🇫🇷" },
+  { value: "es", label: "Español", flag: "🇪🇸" },
+  { value: "de", label: "Deutsch", flag: "🇩🇪" },
+  { value: "pt", label: "Português", flag: "🇧🇷" },
+  { value: "it", label: "Italiano", flag: "🇮🇹" },
+  { value: "nl", label: "Nederlands", flag: "🇳🇱" },
+  { value: "ru", label: "Русский", flag: "🇷🇺" },
+  { value: "ja", label: "日本語", flag: "🇯🇵" },
+  { value: "ko", label: "한국어", flag: "🇰🇷" },
+  { value: "zh", label: "中文", flag: "🇨🇳" },
+  { value: "ar", label: "العربية", flag: "🇸🇦" },
+  { value: "fa", label: "فارسی", flag: "🇮🇷" },
 ];
 
 interface LanguageSwitcherProps {
@@ -43,7 +54,7 @@ export function LanguageSwitcher({ variant = "select" }: LanguageSwitcherProps)
 
   return (
     <Select value={locale} onValueChange={(v) => setLocale(v as Locale)}>
-      <SelectTrigger className="w-[130px] h-9 bg-transparent border-border-dark hover:bg-surface-dark">
+      <SelectTrigger className="w-[150px] h-9">
         <SelectValue>
           <span className="flex items-center gap-2">
             <Globe className="h-4 w-4" />
@@ -52,12 +63,11 @@ export function LanguageSwitcher({ variant = "select" }: LanguageSwitcherProps)
           </span>
         </SelectValue>
       </SelectTrigger>
-      <SelectContent className="bg-surface-dark border-border-dark">
+      <SelectContent>
         {languages.map((lang) => (
           <SelectItem
             key={lang.value}
             value={lang.value}
-            className="hover:bg-primary/10 focus:bg-primary/10"
           >
             <span className="flex items-center gap-2">
               <span>{lang.flag}</span>