very first commit

src/app/services/language.service.ts

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+import { Injectable, signal } from '@angular/core';
+
+export interface Language {
+  code: string;
+  name: string;
+  flag: string;
+  flagSvg: string;
+  enabled: boolean;
+}
+
+@Injectable({
+  providedIn: 'root'
+})
+export class LanguageService {
+  private currentLanguageSignal = signal<string>('ru');
+
+  languages: Language[] = [
+    { code: 'ru', name: 'Русский', flag: '🇷🇺', flagSvg: '/flags/ru.svg', enabled: true },
+    { code: 'en', name: 'English', flag: '🇬🇧', flagSvg: '/flags/en.svg', enabled: false },
+    { code: 'hy', name: 'Հայերեն', flag: '🇦🇲', flagSvg: '/flags/arm.svg', enabled: false }
+  ];
+
+  currentLanguage = this.currentLanguageSignal.asReadonly();
+
+  constructor() {
+    // Load saved language from localStorage
+    const savedLang = localStorage.getItem('selectedLanguage');
+    if (savedLang && this.languages.find(l => l.code === savedLang && l.enabled)) {
+      this.currentLanguageSignal.set(savedLang);
+    }
+  }
+
+  setLanguage(langCode: string): void {
+    const lang = this.languages.find(l => l.code === langCode);
+    if (lang && lang.enabled) {
+      this.currentLanguageSignal.set(langCode);
+      localStorage.setItem('selectedLanguage', langCode);
+    }
+  }
+
+  getCurrentLanguage(): Language | undefined {
+    return this.languages.find(l => l.code === this.currentLanguageSignal());
+  }
+}