feat: add news section with admin editor and public article view

- NewsSection with animated grid background, category filters, featured cards
- AdminNews list page with toggle publish/featured, pagination
- AdminNewsCreate with TipTap rich text editor, URL validation
- NewsArticle detail page with DOMPurify sanitization, Telegram back button
- Toggle component with WCAG 44px touch targets, role=switch
- Prose styles for highlight marks and responsive iframes
- i18n translations (en, ru, zh, fa)

package.json

@@ -35,12 +35,23 @@
     "@tanstack/react-query": "^5.8.0",
     "@tanstack/react-table": "^8.21.3",
     "@telegram-apps/sdk-react": "^3.3.9",
+    "@tiptap/extension-color": "^3.20.4",
+    "@tiptap/extension-highlight": "^3.20.4",
+    "@tiptap/extension-image": "^3.20.4",
+    "@tiptap/extension-link": "^3.20.4",
+    "@tiptap/extension-placeholder": "^3.20.4",
+    "@tiptap/extension-text-align": "^3.20.4",
+    "@tiptap/extension-text-style": "^3.20.4",
+    "@tiptap/extension-underline": "^3.20.4",
+    "@tiptap/pm": "^3.20.4",
+    "@tiptap/react": "^3.20.4",
+    "@tiptap/starter-kit": "^3.20.4",
     "autoprefixer": "^10.4.24",
     "axios": "^1.6.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "cmdk": "^1.1.1",
-    "dompurify": "^3.3.1",
+    "dompurify": "^3.3.3",
     "framer-motion": "^12.29.2",
     "graphology": "^0.26.0",
     "graphology-layout-forceatlas2": "^0.10.1",
@@ -54,6 +65,7 @@
     "react-i18next": "^16.5.4",
     "react-router": "^7.13.0",
     "react-twemoji": "^0.7.2",
+    "reactjs-tiptap-editor": "^1.0.19",
     "recharts": "^3.7.0",
     "sigma": "^3.0.2",
     "simplex-noise": "^4.0.3",