feat: added cookies to use subdomains

kittyurl-frontend/package-lock.json

@@ -10,6 +10,7 @@
       "dependencies": {
         "@tailwindcss/vite": "^4.1.18",
         "axios": "^1.13.2",
+        "js-cookie": "^3.0.5",
         "js-sha512": "^0.9.0",
         "lucide-react": "^0.562.0",
         "react": "^19.2.0",
@@ -18,6 +19,7 @@
       },
       "devDependencies": {
         "@eslint/js": "^9.39.1",
+        "@types/js-cookie": "^3.0.6",
         "@types/node": "^24.10.1",
         "@types/react": "^19.2.5",
         "@types/react-dom": "^19.2.3",
@@ -1588,6 +1590,13 @@
       "integrity": "sha512-dWHzHa2WqEXI/O1E9OjrocMTKJl2mSrEolh1Iomrv6U+JuNwaHXsXx9bLu5gG7BUWFIN0skIQJQ/L1rIex4X6w==",
       "license": "MIT"
     },
+    "node_modules/@types/js-cookie": {
+      "version": "3.0.6",
+      "resolved": "https://registry.npmjs.org/@types/js-cookie/-/js-cookie-3.0.6.tgz",
+      "integrity": "sha512-wkw9yd1kEXOPnvEeEV1Go1MmxtBJL0RR79aOTAApecWFVu7w0NNXNqhcWgvw2YgZDYadliXkl14pa3WXw5jlCQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@types/json-schema": {
       "version": "7.0.15",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.15.tgz",
@@ -3007,6 +3016,15 @@
         "jiti": "lib/jiti-cli.mjs"
       }
     },
+    "node_modules/js-cookie": {
+      "version": "3.0.5",
+      "resolved": "https://registry.npmjs.org/js-cookie/-/js-cookie-3.0.5.tgz",
+      "integrity": "sha512-cEiJEAEoIbWfCZYKWhVwFuvPX1gETRYPw6LlaTKoxD3s2AkXzkCjnp6h0V77ozyqj0jakteJ4YqDJT830+lVGw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=14"
+      }
+    },
     "node_modules/js-sha512": {
       "version": "0.9.0",
       "resolved": "https://registry.npmjs.org/js-sha512/-/js-sha512-0.9.0.tgz",