feat: enhance CSV import functionality, integrate react-query for data fetching, and refactor admin components

frontend/package-lock.json

@@ -9,6 +9,7 @@
       "version": "0.0.0",
       "dependencies": {
         "@tailwindcss/vite": "^4.1.11",
+        "@tanstack/react-query": "^5.85.0",
         "js-cookie": "^3.0.5",
         "lucide-react": "^0.539.0",
         "primeicons": "^7.0.0",
@@ -17,6 +18,7 @@
         "react-dom": "^19.1.1",
         "react-router-dom": "^7.8.0",
         "react-toastify": "^11.0.5",
+        "split-lines": "^3.0.0",
         "tailwind-merge": "^3.3.1",
         "tailwindcss": "^4.1.11",
         "tailwindcss-animate": "^1.0.7",
@@ -1823,6 +1825,32 @@
         "vite": "^5.2.0 || ^6 || ^7"
       }
     },
+    "node_modules/@tanstack/query-core": {
+      "version": "5.83.1",
+      "resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.83.1.tgz",
+      "integrity": "sha512-OG69LQgT7jSp+5pPuCfzltq/+7l2xoweggjme9vlbCPa/d7D7zaqv5vN/S82SzSYZ4EDLTxNO1PWrv49RAS64Q==",
+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      }
+    },
+    "node_modules/@tanstack/react-query": {
+      "version": "5.85.0",
+      "resolved": "https://registry.npmjs.org/@tanstack/react-query/-/react-query-5.85.0.tgz",
+      "integrity": "sha512-t1HMfToVMGfwEJRya6GG7gbK0luZJd+9IySFNePL1BforU1F3LqQ3tBC2Rpvr88bOrlU6PXyMLgJD0Yzn4ztUw==",
+      "license": "MIT",
+      "dependencies": {
+        "@tanstack/query-core": "5.83.1"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      },
+      "peerDependencies": {
+        "react": "^18 || ^19"
+      }
+    },
     "node_modules/@types/babel__core": {
       "version": "7.20.5",
       "resolved": "https://registry.npmjs.org/@types/babel__core/-/babel__core-7.20.5.tgz",
@@ -4149,6 +4177,18 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/split-lines": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/split-lines/-/split-lines-3.0.0.tgz",
+      "integrity": "sha512-d0TpRBL/VfKDXsk8JxPF7zgF5pCUDdBMSlEL36xBgVeaX448t+yGXcJaikUyzkoKOJ0l6KpMfygzJU9naIuivw==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/strip-json-comments": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.1.1.tgz",