diff --git a/backend/package.json b/backend/package.json
index 3776f27e..38710f87 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -73,6 +73,6 @@
     "ts-node": "^10.9.2",
     "tsx": "^4.19.2",
     "typescript": "^5.9.3",
-    "vitest": "^3.2.4"
+    "vitest": "^5.0.5"
   }
 }
diff --git a/frontend/package.json b/frontend/package.json
index 230344e4..98d1dcdf 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -46,6 +46,6 @@
     "@playwright/test": "^1.55.0",
     "tailwindcss": "^4",
     "typescript": "^5",
-    "vitest": "^3.2.7"
+    "vitest": "^5.0.5"
   }
 }
diff --git a/package-lock.json b/package-lock.json
index e370471b..5d65b3c6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,7 +20,7 @@
         "husky": "^9.1.7",
         "lint-staged": "^17.0.7",
         "next": "16.4.3",
-        "vitest": "^3.2.7"
+        "vitest": "^5.0.5"
       },
       "optionalDependencies": {
         "@rollup/rollup-linux-x64-gnu": "^4.63.1",
@@ -80,7 +80,7 @@
         "ts-node": "^10.9.2",
         "tsx": "^4.19.2",
         "typescript": "^5.9.3",
-        "vitest": "^3.2.4"
+        "vitest": "^5.0.5"
       }
     },
     "backend/node_modules/@noble/hashes": {
@@ -185,7 +185,7 @@
         "openapi-typescript": "^7.13.0",
         "tailwindcss": "^4",
         "typescript": "^5",
-        "vitest": "^3.2.7"
+        "vitest": "^5.0.5"
       }
     },
     "frontend/node_modules/@noble/hashes": {
@@ -228,6 +228,16 @@
         "node": ">=22.12.0"
       }
     },
+    "frontend/node_modules/@types/node": {
+      "version": "20.19.43",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.43.tgz",
+      "integrity": "sha512-6oYBAi5ikg4Pl+kGsoYtawUMBT2zZMCvPNF7pVLnHZfd1zf38DRiWn/gT01RYCdUqkv7Fhr+C9ot4/tb+2sVvA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "undici-types": "~6.21.0"
+      }
+    },
     "frontend/node_modules/bignumber.js": {
       "version": "11.1.5",
       "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-11.1.5.tgz",
@@ -246,6 +256,13 @@
         "node": ">=20.0.0"
       }
     },
+    "frontend/node_modules/undici-types": {
+      "version": "6.21.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
+      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/@acemir/cssom": {
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       "resolved": "https://registry.npmjs.org/@acemir/cssom/-/cssom-0.9.31.tgz",
@@ -572,7 +589,7 @@
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-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "engines": {
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@@ -582,7 +599,7 @@
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-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
       "engines": {
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@@ -616,7 +633,7 @@
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-      "dev": true,
+      "devOptional": true,
       "license": "MIT",
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@@ -708,7 +725,7 @@
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-      "dev": true,
+      "devOptional": true,
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@@ -4448,7 +4465,8 @@
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       "os": [
         "android"
-      ]
+      ],
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@@ -4462,7 +4480,8 @@
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       "os": [
         "android"
-      ]
+      ],
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@@ -4476,7 +4495,8 @@
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         "darwin"
-      ]
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@@ -4490,7 +4510,8 @@
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         "darwin"
-      ]
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@@ -4504,7 +4525,8 @@
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-      ]
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@@ -4518,7 +4540,8 @@
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-      ]
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@@ -4532,7 +4555,8 @@
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         "linux"
-      ]
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@@ -4546,7 +4570,8 @@
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         "linux"
-      ]
+      ],
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@@ -4560,7 +4585,8 @@
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         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-arm64-musl": {
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@@ -4574,7 +4600,8 @@
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         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-loong64-gnu": {
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@@ -4588,7 +4615,8 @@
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         "linux"
-      ]
+      ],
+      "peer": true
     },
     "node_modules/@rollup/rollup-linux-loong64-musl": {
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@@ -4602,7 +4630,8 @@
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       "os": [
         "linux"
-      ]
+      ],
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@@ -4616,7 +4645,8 @@
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         "linux"
-      ]
+      ],
+      "peer": true
     },
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@@ -4630,7 +4660,8 @@
       "optional": true,
       "os": [
         "linux"
-      ]
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+      "peer": true
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@@ -4644,7 +4675,8 @@
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         "linux"
-      ]
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@@ -4658,7 +4690,8 @@
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-      ]
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@@ -4672,7 +4705,8 @@
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         "linux"
-      ]
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@@ -4699,7 +4733,8 @@
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         "linux"
-      ]
+      ],
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     },
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@@ -4713,7 +4748,8 @@
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         "openbsd"
-      ]
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     },
     "node_modules/@rollup/rollup-openharmony-arm64": {
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@@ -4727,7 +4763,8 @@
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         "openharmony"
-      ]
+      ],
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     },
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@@ -4741,7 +4778,8 @@
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         "win32"
-      ]
+      ],
+      "peer": true
     },
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@@ -4755,7 +4793,8 @@
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         "win32"
-      ]
+      ],
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     },
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       "version": "4.62.3",
@@ -4769,7 +4808,8 @@
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       "os": [
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-      ]
+      ],
+      "peer": true
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@@ -4783,7 +4823,8 @@
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         "win32"
-      ]
+      ],
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     "node_modules/@rtsao/scc": {
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@@ -5893,18 +5934,18 @@
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-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.33.tgz",
-      "integrity": "sha512-Rs1bVAIdBs5gbTIKza/tgpMuG1k3U/UMJLWecIMxNdJFDMzcM5LOiLVRYh3PilWEYDIeUDv7bpiHPLPsbydGcw==",
+      "version": "26.6.6",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.6.6.tgz",
+      "integrity": "sha512-MzQj+8Kx3XI40OmUAE6Qoh58ZMNstNNMwn2nfd3qWsfe7nDNSqJNzes4njhz6AHwrSHOffSLwXU6yb474Q4aog==",
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~8.9.0"
       }
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     "node_modules/@types/node/node_modules/undici-types": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
-      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "version": "8.9.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.9.0.tgz",
+      "integrity": "sha512-KTDyRTYX8sWmKXAikPHHSyc63CRPETMctyjKFupcC6OBLXT3xsN0e9aF7m+mIXutFWpUXuedtowG7iLOzp0kQg==",
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@@ -5955,7 +5996,7 @@
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-      "dev": true,
+      "devOptional": true,
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@@ -6834,40 +6875,24 @@
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-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
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-        "@vitest/spy": "3.2.7",
-        "@vitest/utils": "3.2.7",
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+      "version": "5.0.5",
+      "resolved": "https://registry.npmjs.org/@vitest/mocker/-/mocker-5.0.5.tgz",
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       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@vitest/spy": "3.2.7",
+        "@jridgewell/trace-mapping": "0.3.31",
+        "@vitest/spy": "5.0.5",
         "estree-walker": "^3.0.3",
-        "magic-string": "^0.30.17"
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       "peerDependencies": {
-        "msw": "^2.4.9",
-        "vite": "^5.0.0 || ^6.0.0 || ^7.0.0-0"
+        "msw": "^2.4.9 || ^3.0.0",
+        "vite": "^6.0.0 || ^7.0.0 || ^8.0.0"
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@@ -6878,73 +6903,22 @@
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+        "@jridgewell/sourcemap-codec": "^1.6.0"
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+      "resolved": "https://registry.npmjs.org/@vitest/spy/-/spy-5.0.5.tgz",
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@@ -7717,16 +7691,6 @@
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-      "dev": true,
-      "license": "MIT",
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@@ -7812,18 +7776,11 @@
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+      "resolved": "https://registry.npmjs.org/chai/-/chai-6.3.0.tgz",
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-        "vite-node": "3.2.4",
-        "why-is-node-running": "^2.3.0"
+        "@vitest/mocker": "5.0.5",
+        "chai": "^6.3.0",
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+        "expect-type": "^1.4.0",
+        "magic-string": "^1.4.3",
+        "obug": "^3.0.0",
+        "picomatch": "^4.0.7",
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+        "tinybench": "^6.2.2",
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         "vitest": "vitest.mjs"
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       "engines": {
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-        "@vitest/browser": "3.2.7",
-        "@vitest/ui": "3.2.7",
+        "@opentelemetry/api": "^1.9.0",
+        "@types/node": "^22.0.0 || >=24.0.0",
+        "@vitest/browser-playwright": "5.0.5",
+        "@vitest/browser-preview": "5.0.5",
+        "@vitest/browser-webdriverio": "^5.0.0-beta.5 || >=5.0.0",
+        "@vitest/coverage-istanbul": "5.0.5",
+        "@vitest/coverage-v8": "5.0.5",
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+        "jsdom": "*",
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         "@edge-runtime/vm": {
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         },
-        "@types/debug": {
+        "@opentelemetry/api": {
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         },
         "@types/node": {
           "optional": true
         },
-        "@vitest/browser": {
+        "@vitest/browser-playwright": {
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+        },
+        "@vitest/browser-preview": {
+          "optional": true
+        },
+        "@vitest/browser-webdriverio": {
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+        },
+        "@vitest/coverage-istanbul": {
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+        },
+        "@vitest/coverage-v8": {
           "optional": true
         },
         "@vitest/ui": {
@@ -16152,9 +16024,22 @@
         },
         "jsdom": {
           "optional": true
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+        "vite": {
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         }
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+    "node_modules/vitest/node_modules/magic-string": {
+      "version": "1.4.5",
+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-1.4.5.tgz",
+      "integrity": "sha512-oLLC2+YvQUfAa+vxoufE/yc1icb87M9iXIRqAoR/2EhE/8cb3SF/+Gi0c2By1B+5Vz2e2vQtUvHiu1+63Znh+w==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@jridgewell/sourcemap-codec": "^1.6.0"
+      }
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     "node_modules/vitest/node_modules/picomatch": {
       "version": "4.0.7",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.7.tgz",
@@ -16168,10 +16053,10 @@
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+    "node_modules/vitest/node_modules/std-env": {
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diff --git a/package.json b/package.json
index 33b3815c..3dcc0c98 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
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-    "vitest": "^3.2.7"
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