feat: replace animated backgrounds with Aceternity UI system

- Add 16 animated background components (aurora, sparkles, vortex, shooting-stars,
  beams, beams-collision, gradient-animation, wavy, lines, boxes, meteors, grid,
  dots, spotlight, noise, ripple, gemini-effect)
- Add full admin BackgroundEditor with live preview, type gallery, per-type settings
- Add BackgroundRenderer with lazy loading, localStorage cache, mobile reduction
- Add input sanitization (sanitizeColor, clampNumber) across all components
- Add translations for en, ru, zh, fa locales
- Remove old Aurora (WebGL/OGL) and AnimatedBackground (CSS wave-blob)
- Remove ogl dependency, add simplex-noise

package-lock.json

@@ -36,12 +36,12 @@
         "i18next": "^25.8.4",
         "i18next-browser-languagedetector": "^8.2.0",
         "jsencrypt": "^3.5.4",
-        "ogl": "^1.0.11",
         "react": "^19.2.4",
         "react-dom": "^19.2.4",
         "react-i18next": "^16.5.4",
         "react-router": "^7.13.0",
         "react-twemoji": "^0.7.2",
+        "simplex-noise": "^4.0.3",
         "tailwind-merge": "^3.4.0",
         "zustand": "^5.0.11"
       },
@@ -5233,12 +5233,6 @@
         "node": ">= 6"
       }
     },
-    "node_modules/ogl": {
-      "version": "1.0.11",
-      "resolved": "https://registry.npmjs.org/ogl/-/ogl-1.0.11.tgz",
-      "integrity": "sha512-kUpC154AFfxi16pmZUK4jk3J+8zxwTWGPo03EoYA8QPbzikHoaC82n6pNTbd+oEaJonaE8aPWBlX7ad9zrqLsA==",
-      "license": "Unlicense"
-    },
     "node_modules/onetime": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/onetime/-/onetime-7.0.0.tgz",
@@ -6082,6 +6076,12 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
+    "node_modules/simplex-noise": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/simplex-noise/-/simplex-noise-4.0.3.tgz",
+      "integrity": "sha512-qSE2I4AngLQG7BXqoZj51jokT4WUXe8mOBrvfOXpci8+6Yu44+/dD5zqDpOx3Ux792eamTd2lLcI8jqFntk/lg==",
+      "license": "MIT"
+    },
     "node_modules/slice-ansi": {
       "version": "7.1.2",
       "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-7.1.2.tgz",