diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..61af1e9
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,17 @@
+node_modules/
+dist/
+.git/
+.gitignore
+
+# 환경 변수 (빌드 시 --build-arg로 주입)
+.env
+.env.*
+
+# 에디터 / OS
+.vscode/
+.idea/
+*.DS_Store
+Thumbs.db
+
+# 로그
+npm-debug.log*
diff --git a/.env.development b/.env.development
new file mode 100644
index 0000000..b8ca0df
--- /dev/null
+++ b/.env.development
@@ -0,0 +1 @@
+VITE_API_BASE_URL=
diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
index d830d48..1fabd9e 100644
--- a/.gitea/workflows/deploy.yml
+++ b/.gitea/workflows/deploy.yml
@@ -26,7 +26,7 @@ jobs:
           node -v && npm -v
 
       - name: 의존성 설치
-        run: npm ci --legacy-peer-deps
+        run: npm ci
 
       - name: 린트 검사
         run: npm run lint
@@ -48,5 +48,14 @@ jobs:
           chmod 600 ~/.ssh/deploy_key
           ssh -o StrictHostKeyChecking=no -i ~/.ssh/deploy_key \
             ${{ secrets.SERVER_USER }}@${{ secrets.SERVER_HOST }} \
-            'set -e && export PATH=$PATH:/usr/local/bin:/opt/homebrew/bin:$HOME/.docker/bin && cd /tmp && rm -rf a301-client && git clone --quiet https://tolelom:${{ secrets.GIT_TOKEN }}@git.tolelom.xyz/A301/a301_client.git a301-client && cd a301-client && docker build --no-cache --build-arg VITE_API_BASE_URL=${{ secrets.VITE_API_BASE_URL }} -t a301-client:latest . && cd ~/server && docker compose up -d --force-recreate a301-client && rm -rf /tmp/a301-client'
+            'set -e &&
+            export PATH=$PATH:/usr/local/bin:/opt/homebrew/bin:$HOME/.docker/bin &&
+            cd /tmp &&
+            rm -rf a301-client &&
+            git clone --quiet https://tolelom:${{ secrets.GIT_TOKEN }}@git.tolelom.xyz/A301/a301_client.git a301-client &&
+            cd a301-client &&
+            docker build --build-arg VITE_API_BASE_URL=${{ secrets.VITE_API_BASE_URL }} -t a301-client:latest . &&
+            cd ~/server &&
+            docker compose up -d --force-recreate a301-client &&
+            rm -rf /tmp/a301-client'
           rm -f ~/.ssh/deploy_key
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
deleted file mode 100644
index 0fe999e..0000000
--- a/.github/workflows/ci.yml
+++ /dev/null
@@ -1,82 +0,0 @@
-name: CI/CD
-
-on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
-
-jobs:
-  # ── 1. 린트 + 테스트 + 빌드 ────────────────────────────────────────────────
-  test:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        run: |
-          git config --global --add safe.directory /workspace/A301/a301_client
-          git init
-          git remote add origin $GITHUB_SERVER_URL/$GITHUB_REPOSITORY.git
-          git fetch --depth=1 origin $GITHUB_SHA
-          git checkout $GITHUB_SHA
-
-      - name: Setup Node.js
-        run: |
-          if ! command -v node &>/dev/null || [ "$(node -v | cut -d. -f1 | tr -d v)" -lt 22 ]; then
-            curl -fsSL https://deb.nodesource.com/setup_22.x | bash -
-            apt-get install -y nodejs
-          fi
-          node -v && npm -v
-
-      - name: Install dependencies
-        run: npm ci --legacy-peer-deps
-
-      - name: Lint
-        run: npm run lint
-
-      - name: Test
-        run: npm test
-
-      - name: Build
-        run: npm run build
-        env:
-          VITE_API_BASE_URL: https://a301.api.tolelom.xyz
-
-  # ── 2. Docker 빌드 & Gitea 레지스트리 푸시 (main 머지 시만) ───────────────
-  docker:
-    needs: test
-    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        run: |
-          git config --global --add safe.directory /workspace/A301/a301_client
-          git init
-          git remote add origin $GITHUB_SERVER_URL/$GITHUB_REPOSITORY.git
-          git fetch --depth=1 origin $GITHUB_SHA
-          git checkout $GITHUB_SHA
-
-      - name: Login to Gitea Registry
-        run: echo "${{ secrets.GITEA_TOKEN }}" | docker login git.tolelom.xyz -u "${{ github.actor }}" --password-stdin
-
-      - name: Build and Push Docker Image
-        run: |
-          docker build \
-            --build-arg VITE_API_BASE_URL=https://a301.api.tolelom.xyz \
-            -t git.tolelom.xyz/${{ github.repository_owner }}/a301-web:latest \
-            .
-          docker push git.tolelom.xyz/${{ github.repository_owner }}/a301-web:latest
-
-  # ── 3. 서버 배포 ──────────────────────────────────────────────────────────
-  deploy:
-    needs: docker
-    runs-on: ubuntu-latest
-    steps:
-      - name: Deploy to Server
-        run: |
-          mkdir -p ~/.ssh
-          echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/deploy_key
-          chmod 600 ~/.ssh/deploy_key
-          ssh -o StrictHostKeyChecking=no -i ~/.ssh/deploy_key \
-            ${{ secrets.SERVER_USER }}@${{ secrets.SERVER_HOST }} \
-            'export PATH=$PATH:/usr/local/bin:/opt/homebrew/bin:$HOME/.docker/bin && cd ~/server && docker compose pull web && docker compose up -d web'
-          rm -f ~/.ssh/deploy_key
diff --git a/Dockerfile b/Dockerfile
index 40954a6..2f36f50 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
 # Stage 1: Build
-FROM node:lts-alpine AS builder
+FROM node:22-alpine AS builder
 WORKDIR /app
 COPY package*.json ./
-RUN npm ci --legacy-peer-deps
+RUN npm ci
 COPY . .
 ARG VITE_API_BASE_URL
 ENV VITE_API_BASE_URL=$VITE_API_BASE_URL
diff --git a/eslint.config.js b/eslint.config.js
index 4fa125d..b68f379 100644
--- a/eslint.config.js
+++ b/eslint.config.js
@@ -14,12 +14,11 @@ export default defineConfig([
       reactRefresh.configs.vite,
     ],
     languageOptions: {
-      ecmaVersion: 2020,
+      ecmaVersion: 'latest',
+      sourceType: 'module',
       globals: globals.browser,
       parserOptions: {
-        ecmaVersion: 'latest',
         ecmaFeatures: { jsx: true },
-        sourceType: 'module',
       },
     },
     rules: {
diff --git a/index.html b/index.html
index 82d547a..3318482 100644
--- a/index.html
+++ b/index.html
@@ -4,8 +4,14 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <meta name="description" content="One of the plans — 멀티플레이어 보스 레이드 게임 플랫폼">
+    <meta property="og:type" content="website">
+    <meta property="og:url" content="https://a301.tolelom.xyz">
     <meta property="og:title" content="One of the plans">
     <meta property="og:description" content="One of the plans — 멀티플레이어 보스 레이드 게임 플랫폼">
+    <meta property="og:image" content="https://a301.tolelom.xyz/images/logo.webp">
+    <link rel="preconnect" href="https://cdn.jsdelivr.net">
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css">
+    <link rel="icon" type="image/webp" href="/images/logo.webp">
     <title>One of the plans</title>
   </head>
   <body>
diff --git a/nginx.conf b/nginx.conf
index 33ea2b4..c57dba5 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -3,7 +3,6 @@ server {
     root /usr/share/nginx/html;
     index index.html;
 
-    # 보안 헤더
     add_header X-Content-Type-Options "nosniff" always;
     add_header X-Frame-Options "DENY" always;
 
@@ -13,11 +12,16 @@ server {
         add_header Cache-Control "no-store, no-cache, must-revalidate";
     }
 
-    # Vite 해시 에셋 장기 캐싱
+    # Vite 빌드 에셋 장기 캐싱 (파일명에 해시 포함 — 내용 변경 시 URL도 바뀜)
     location /assets/ {
         add_header Cache-Control "public, max-age=31536000, immutable";
     }
 
+    # 정적 이미지 단기 캐싱 (해시 없는 파일)
+    location /images/ {
+        add_header Cache-Control "public, max-age=86400";
+    }
+
     # SPA fallback (react-router 사용 시 필요)
     location / {
         try_files $uri $uri/ /index.html;
diff --git a/package-lock.json b/package-lock.json
index 1c1dff2..7e6def8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,7 +20,7 @@
         "@types/react": "^19.2.7",
         "@types/react-dom": "^19.2.3",
         "@vitejs/plugin-react": "^5.1.1",
-        "eslint": "^10.0.2",
+        "eslint": "^9.0.0",
         "eslint-plugin-react-hooks": "^7.0.1",
         "eslint-plugin-react-refresh": "^0.4.24",
         "globals": "^16.5.0",
@@ -1031,50 +1031,87 @@
       }
     },
     "node_modules/@eslint/config-array": {
-      "version": "0.23.2",
-      "resolved": "https://registry.npmjs.org/@eslint/config-array/-/config-array-0.23.2.tgz",
-      "integrity": "sha512-YF+fE6LV4v5MGWRGj7G404/OZzGNepVF8fxk7jqmqo3lrza7a0uUcDnROGRBG1WFC1omYUS/Wp1f42i0M+3Q3A==",
+      "version": "0.21.2",
+      "resolved": "https://registry.npmjs.org/@eslint/config-array/-/config-array-0.21.2.tgz",
+      "integrity": "sha512-nJl2KGTlrf9GjLimgIru+V/mzgSK0ABCDQRvxw5BjURL7WfH5uoWmizbH7QB6MmnMBd8cIC9uceWnezL1VZWWw==",
       "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
-        "@eslint/object-schema": "^3.0.2",
+        "@eslint/object-schema": "^2.1.7",
         "debug": "^4.3.1",
-        "minimatch": "^10.2.1"
+        "minimatch": "^3.1.5"
       },
       "engines": {
-        "node": "^20.19.0 || ^22.13.0 || >=24"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       }
     },
     "node_modules/@eslint/config-helpers": {
-      "version": "0.5.2",
-      "resolved": "https://registry.npmjs.org/@eslint/config-helpers/-/config-helpers-0.5.2.tgz",
-      "integrity": "sha512-a5MxrdDXEvqnIq+LisyCX6tQMPF/dSJpCfBgBauY+pNZ28yCtSsTvyTYrMhaI+LK26bVyCJfJkT0u8KIj2i1dQ==",
+      "version": "0.4.2",
+      "resolved": "https://registry.npmjs.org/@eslint/config-helpers/-/config-helpers-0.4.2.tgz",
+      "integrity": "sha512-gBrxN88gOIf3R7ja5K9slwNayVcZgK6SOUORm2uBzTeIEfeVaIhOpCtTox3P6R7o2jLFwLFTLnC7kU/RGcYEgw==",
       "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
-        "@eslint/core": "^1.1.0"
+        "@eslint/core": "^0.17.0"
       },
       "engines": {
-        "node": "^20.19.0 || ^22.13.0 || >=24"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       }
     },
     "node_modules/@eslint/core": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@eslint/core/-/core-1.1.0.tgz",
-      "integrity": "sha512-/nr9K9wkr3P1EzFTdFdMoLuo1PmIxjmwvPozwoSodjNBdefGujXQUF93u1DDZpEaTuDvMsIQddsd35BwtrW9Xw==",
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@eslint/core/-/core-0.17.0.tgz",
+      "integrity": "sha512-yL/sLrpmtDaFEiUj1osRP4TI2MDz1AddJL+jZ7KSqvBuliN4xqYY54IfdN8qD8Toa6g1iloph1fxQNkjOxrrpQ==",
       "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
         "@types/json-schema": "^7.0.15"
       },
       "engines": {
-        "node": "^20.19.0 || ^22.13.0 || >=24"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      }
+    },
+    "node_modules/@eslint/eslintrc": {
+      "version": "3.3.5",
+      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-3.3.5.tgz",
+      "integrity": "sha512-4IlJx0X0qftVsN5E+/vGujTRIFtwuLbNsVUe7TO6zYPDR1O6nFwvwhIKEKSrl6dZchmYBITazxKoUYOjdtjlRg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ajv": "^6.14.0",
+        "debug": "^4.3.2",
+        "espree": "^10.0.1",
+        "globals": "^14.0.0",
+        "ignore": "^5.2.0",
+        "import-fresh": "^3.2.1",
+        "js-yaml": "^4.1.1",
+        "minimatch": "^3.1.5",
+        "strip-json-comments": "^3.1.1"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/eslint"
+      }
+    },
+    "node_modules/@eslint/eslintrc/node_modules/globals": {
+      "version": "14.0.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-14.0.0.tgz",
+      "integrity": "sha512-oahGvuMGQlPw/ivIYBjVSrWAfWLBeku5tpPE2fOPLi+WHffIWbuh2tCjhyQhTBPMf5E9jDEH4FOmTYgYwbKwtQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
       }
     },
     "node_modules/@eslint/js": {
-      "version": "9.39.3",
-      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.39.3.tgz",
-      "integrity": "sha512-1B1VkCq6FuUNlQvlBYb+1jDu/gV297TIs/OeiaSR9l1H27SVW55ONE1e1Vp16NqP683+xEGzxYtv4XCiDPaQiw==",
+      "version": "9.39.4",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.39.4.tgz",
+      "integrity": "sha512-nE7DEIchvtiFTwBw4Lfbu59PG+kCofhjsKaCWzxTpt4lfRjRMqG6uMBzKXuEcyXhOHoUp9riAm7/aWYGhXZ9cw==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -1085,27 +1122,27 @@
       }
     },
     "node_modules/@eslint/object-schema": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/@eslint/object-schema/-/object-schema-3.0.2.tgz",
-      "integrity": "sha512-HOy56KJt48Bx8KmJ+XGQNSUMT/6dZee/M54XyUyuvTvPXJmsERRvBchsUVx1UMe1WwIH49XLAczNC7V2INsuUw==",
+      "version": "2.1.7",
+      "resolved": "https://registry.npmjs.org/@eslint/object-schema/-/object-schema-2.1.7.tgz",
+      "integrity": "sha512-VtAOaymWVfZcmZbp6E2mympDIHvyjXs/12LqWYjVw6qjrfF+VK+fyG33kChz3nnK+SU5/NeHOqrTEHS8sXO3OA==",
       "dev": true,
       "license": "Apache-2.0",
       "engines": {
-        "node": "^20.19.0 || ^22.13.0 || >=24"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       }
     },
     "node_modules/@eslint/plugin-kit": {
-      "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/@eslint/plugin-kit/-/plugin-kit-0.6.0.tgz",
-      "integrity": "sha512-bIZEUzOI1jkhviX2cp5vNyXQc6olzb2ohewQubuYlMXZ2Q/XjBO0x0XhGPvc9fjSIiUN0vw+0hq53BJ4eQSJKQ==",
+      "version": "0.4.1",
+      "resolved": "https://registry.npmjs.org/@eslint/plugin-kit/-/plugin-kit-0.4.1.tgz",
+      "integrity": "sha512-43/qtrDUokr7LJqoF2c3+RInu/t4zfrpYdoSDfYyhg52rwLV6TnOvdG4fXm7IkSB3wErkcmJS9iEhjVtOSEjjA==",
       "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
-        "@eslint/core": "^1.1.0",
+        "@eslint/core": "^0.17.0",
         "levn": "^0.4.1"
       },
       "engines": {
-        "node": "^20.19.0 || ^22.13.0 || >=24"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       }
     },
     "node_modules/@exodus/bytes": {
@@ -1747,13 +1784,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/@types/esrecurse": {
-      "version": "4.3.1",
-      "resolved": "https://registry.npmjs.org/@types/esrecurse/-/esrecurse-4.3.1.tgz",
-      "integrity": "sha512-xJBAbDifo5hpffDBuHl0Y8ywswbiAp/Wi7Y/GtAgSlZyIABppyurxVueOPE8LUQOxdlgi6Zqce7uoEpqNTeiUw==",
-      "dev": true,
-      "license": "MIT"
-    },
     "node_modules/@types/estree": {
       "version": "1.0.8",
       "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.8.tgz",
@@ -1995,6 +2025,13 @@
         "url": "https://github.com/chalk/ansi-styles?sponsor=1"
       }
     },
+    "node_modules/argparse": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
+      "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
+      "dev": true,
+      "license": "Python-2.0"
+    },
     "node_modules/aria-query": {
       "version": "5.3.2",
       "resolved": "https://registry.npmjs.org/aria-query/-/aria-query-5.3.2.tgz",
@@ -2016,14 +2053,11 @@
       }
     },
     "node_modules/balanced-match": {
-      "version": "4.0.4",
-      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-4.0.4.tgz",
-      "integrity": "sha512-BLrgEcRTwX2o6gGxGOCNyMvGSp35YofuYzw9h1IMTRmKqttAZZVU67bdb9Pr2vUHA8+j3i2tJfjO6C6+4myGTA==",
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
+      "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
       "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": "18 || 20 || >=22"
-      }
+      "license": "MIT"
     },
     "node_modules/baseline-browser-mapping": {
       "version": "2.10.0",
@@ -2049,16 +2083,14 @@
       }
     },
     "node_modules/brace-expansion": {
-      "version": "5.0.3",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-5.0.3.tgz",
-      "integrity": "sha512-fy6KJm2RawA5RcHkLa1z/ScpBeA762UF9KmZQxwIbDtRJrgLzM10depAiEQ+CXYcoiqW1/m96OAAoke2nE9EeA==",
+      "version": "1.1.14",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.14.tgz",
+      "integrity": "sha512-MWPGfDxnyzKU7rNOW9SP/c50vi3xrmrua/+6hfPbCS2ABNWfx24vPidzvC7krjU/RTo235sV776ymlsMtGKj8g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "balanced-match": "^4.0.2"
-      },
-      "engines": {
-        "node": "18 || 20 || >=22"
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
       }
     },
     "node_modules/browserslist": {
@@ -2095,6 +2127,16 @@
         "node": "^6 || ^7 || ^8 || ^9 || ^10 || ^11 || ^12 || >=13.7"
       }
     },
+    "node_modules/callsites": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
+      "integrity": "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/caniuse-lite": {
       "version": "1.0.30001774",
       "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001774.tgz",
@@ -2126,6 +2168,66 @@
         "node": ">=18"
       }
     },
+    "node_modules/chalk": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
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+      "dev": true,
+      "license": "MIT",
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+        "supports-color": "^7.1.0"
+      },
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+        "node": ">=10"
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+      "funding": {
+        "url": "https://github.com/chalk/chalk?sponsor=1"
+      }
+    },
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+      },
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+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
+    "node_modules/color-convert": {
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+      "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+      "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "color-name": "~1.1.4"
+      },
+      "engines": {
+        "node": ">=7.0.0"
+      }
+    },
+    "node_modules/color-name": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
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+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/concat-map": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
+      "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/convert-source-map": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/convert-source-map/-/convert-source-map-2.0.0.tgz",
@@ -2371,30 +2473,33 @@
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-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-10.0.2.tgz",
-      "integrity": "sha512-uYixubwmqJZH+KLVYIVKY1JQt7tysXhtj21WSvjcSmU5SVNzMus1bgLe+pAt816yQ8opKfheVVoPLqvVMGejYw==",
+      "version": "9.39.4",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-9.39.4.tgz",
+      "integrity": "sha512-XoMjdBOwe/esVgEvLmNsD3IRHkm7fbKIUGvrleloJXUZgDHig2IPWNniv+GwjyJXzuNqVjlr5+4yVUZjycJwfQ==",
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-        "@eslint/config-helpers": "^0.5.2",
-        "@eslint/core": "^1.1.0",
-        "@eslint/plugin-kit": "^0.6.0",
+        "@eslint-community/regexpp": "^4.12.1",
+        "@eslint/config-array": "^0.21.2",
+        "@eslint/config-helpers": "^0.4.2",
+        "@eslint/core": "^0.17.0",
+        "@eslint/eslintrc": "^3.3.5",
+        "@eslint/js": "9.39.4",
+        "@eslint/plugin-kit": "^0.4.1",
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         "@humanwhocodes/retry": "^0.4.2",
         "@types/estree": "^1.0.6",
         "ajv": "^6.14.0",
+        "chalk": "^4.0.0",
         "cross-spawn": "^7.0.6",
         "debug": "^4.3.2",
         "escape-string-regexp": "^4.0.0",
-        "eslint-scope": "^9.1.1",
-        "eslint-visitor-keys": "^5.0.1",
-        "espree": "^11.1.1",
-        "esquery": "^1.7.0",
+        "eslint-scope": "^8.4.0",
+        "eslint-visitor-keys": "^4.2.1",
+        "espree": "^10.4.0",
+        "esquery": "^1.5.0",
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         "fast-deep-equal": "^3.1.3",
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@@ -2404,7 +2509,8 @@
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         "is-glob": "^4.0.0",
         "json-stable-stringify-without-jsonify": "^1.0.1",
-        "minimatch": "^10.2.1",
+        "lodash.merge": "^4.6.2",
+        "minimatch": "^3.1.5",
         "natural-compare": "^1.4.0",
         "optionator": "^0.9.3"
       },
@@ -2412,7 +2518,7 @@
         "eslint": "bin/eslint.js"
       },
       "engines": {
-        "node": "^20.19.0 || ^22.13.0 || >=24"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
       "funding": {
         "url": "https://eslint.org/donate"
@@ -2457,50 +2563,48 @@
       }
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-      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-9.1.1.tgz",
-      "integrity": "sha512-GaUN0sWim5qc8KVErfPBWmc31LEsOkrUJbvJZV+xuL3u2phMUK4HIvXlWAakfC8W4nzlK+chPEAkYOYb5ZScIw==",
+      "version": "8.4.0",
+      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-8.4.0.tgz",
+      "integrity": "sha512-sNXOfKCn74rt8RICKMvJS7XKV/Xk9kA7DyJr8mJik3S7Cwgy3qlkkmyS2uQB3jiJg6VNdZd/pDBJu0nvG2NlTg==",
       "dev": true,
       "license": "BSD-2-Clause",
       "dependencies": {
-        "@types/esrecurse": "^4.3.1",
-        "@types/estree": "^1.0.8",
         "esrecurse": "^4.3.0",
         "estraverse": "^5.2.0"
       },
       "engines": {
-        "node": "^20.19.0 || ^22.13.0 || >=24"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
       "funding": {
         "url": "https://opencollective.com/eslint"
       }
     },
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-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-5.0.1.tgz",
-      "integrity": "sha512-tD40eHxA35h0PEIZNeIjkHoDR4YjjJp34biM0mDvplBe//mB+IHCqHDGV7pxF+7MklTvighcCPPZC7ynWyjdTA==",
+      "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-4.2.1.tgz",
+      "integrity": "sha512-Uhdk5sfqcee/9H/rCOJikYz67o0a2Tw2hGRPOG2Y1R2dg7brRe1uG0yaNQDHu+TO/uQPF/5eCapvYSmHUjt7JQ==",
       "dev": true,
       "license": "Apache-2.0",
       "engines": {
-        "node": "^20.19.0 || ^22.13.0 || >=24"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
       "funding": {
         "url": "https://opencollective.com/eslint"
       }
     },
     "node_modules/espree": {
-      "version": "11.1.1",
-      "resolved": "https://registry.npmjs.org/espree/-/espree-11.1.1.tgz",
-      "integrity": "sha512-AVHPqQoZYc+RUM4/3Ly5udlZY/U4LS8pIG05jEjWM2lQMU/oaZ7qshzAl2YP1tfNmXfftH3ohurfwNAug+MnsQ==",
+      "version": "10.4.0",
+      "resolved": "https://registry.npmjs.org/espree/-/espree-10.4.0.tgz",
+      "integrity": "sha512-j6PAQ2uUr79PZhBjP5C5fhl8e39FmRnOjsD5lGnWrFU8i2G776tBK7+nP8KuQUTTyAZUwfQqXAgrVH5MbH9CYQ==",
       "dev": true,
       "license": "BSD-2-Clause",
       "dependencies": {
-        "acorn": "^8.16.0",
+        "acorn": "^8.15.0",
         "acorn-jsx": "^5.3.2",
-        "eslint-visitor-keys": "^5.0.1"
+        "eslint-visitor-keys": "^4.2.1"
       },
       "engines": {
-        "node": "^20.19.0 || ^22.13.0 || >=24"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       },
       "funding": {
         "url": "https://opencollective.com/eslint"
@@ -2656,9 +2760,9 @@
       }
     },
     "node_modules/flatted": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.3.3.tgz",
-      "integrity": "sha512-GX+ysw4PBCz0PzosHDepZGANEuFCMLrnRTiEy9McGjmkCQYwRq4A/X786G/fjM/+OjsWSU1ZrY5qyARZmO/uwg==",
+      "version": "3.4.2",
+      "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.4.2.tgz",
+      "integrity": "sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==",
       "dev": true,
       "license": "ISC"
     },
@@ -2713,6 +2817,16 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/has-flag": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
+      "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/hermes-estree": {
       "version": "0.25.1",
       "resolved": "https://registry.npmjs.org/hermes-estree/-/hermes-estree-0.25.1.tgz",
@@ -2781,6 +2895,23 @@
         "node": ">= 4"
       }
     },
+    "node_modules/import-fresh": {
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-3.3.1.tgz",
+      "integrity": "sha512-TR3KfrTZTYLPB6jUjfx6MF9WcWrHL9su5TObK4ZkYgBdWKPOFoSoQIdEuTuR82pmtxH2spWG9h6etwfr1pLBqQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "parent-module": "^1.0.0",
+        "resolve-from": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=6"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/imurmurhash": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/imurmurhash/-/imurmurhash-0.1.4.tgz",
@@ -2845,6 +2976,19 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/js-yaml": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.1.tgz",
+      "integrity": "sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "argparse": "^2.0.1"
+      },
+      "bin": {
+        "js-yaml": "bin/js-yaml.js"
+      }
+    },
     "node_modules/jsdom": {
       "version": "28.1.0",
       "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-28.1.0.tgz",
@@ -2973,6 +3117,13 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/lodash.merge": {
+      "version": "4.6.2",
+      "resolved": "https://registry.npmjs.org/lodash.merge/-/lodash.merge-4.6.2.tgz",
+      "integrity": "sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/lru-cache": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-5.1.1.tgz",
@@ -3021,19 +3172,16 @@
       }
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     "node_modules/minimatch": {
-      "version": "10.2.2",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-10.2.2.tgz",
-      "integrity": "sha512-+G4CpNBxa5MprY+04MbgOw1v7So6n5JY166pFi9KfYwT78fxScCeSNQSNzp6dpPSW2rONOps6Ocam1wFhCgoVw==",
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",
+      "integrity": "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==",
       "dev": true,
-      "license": "BlueOak-1.0.0",
+      "license": "ISC",
       "dependencies": {
-        "brace-expansion": "^5.0.2"
+        "brace-expansion": "^1.1.7"
       },
       "engines": {
-        "node": "18 || 20 || >=22"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/isaacs"
+        "node": "*"
       }
     },
     "node_modules/ms": {
@@ -3137,6 +3285,19 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/parent-module": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/parent-module/-/parent-module-1.0.1.tgz",
+      "integrity": "sha512-GQ2EWRpQV8/o+Aw8YqtfZZPfNRWZYkbidE9k5rpl/hC3vtHHBfGm2Ifi6qWV+coDGkrUKZAxE3Lot5kcsRlh+g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "callsites": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/parse5": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/parse5/-/parse5-8.0.0.tgz",
@@ -3185,9 +3346,9 @@
       "license": "ISC"
     },
     "node_modules/picomatch": {
-      "version": "4.0.3",
-      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz",
-      "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
+      "version": "4.0.4",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.4.tgz",
+      "integrity": "sha512-QP88BAKvMam/3NxH6vj2o21R6MjxZUAd6nlwAS/pnGvN9IVLocLHxGYIzFhg6fUQ+5th6P4dv4eW9jX3DSIj7A==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -3361,6 +3522,16 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/resolve-from": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz",
+      "integrity": "sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/rollup": {
       "version": "4.59.0",
       "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.59.0.tgz",
@@ -3508,6 +3679,32 @@
         "node": ">=8"
       }
     },
+    "node_modules/strip-json-comments": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-3.1.1.tgz",
+      "integrity": "sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/supports-color": {
+      "version": "7.2.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
+      "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "has-flag": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/symbol-tree": {
       "version": "3.2.4",
       "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.4.tgz",
@@ -3670,9 +3867,9 @@
       }
     },
     "node_modules/vite": {
-      "version": "7.3.1",
-      "resolved": "https://registry.npmjs.org/vite/-/vite-7.3.1.tgz",
-      "integrity": "sha512-w+N7Hifpc3gRjZ63vYBXA56dvvRlNWRczTdmCBBa+CotUzAPf5b7YMdMR/8CQoeYE5LX3W4wj6RYTgonm1b9DA==",
+      "version": "7.3.2",
+      "resolved": "https://registry.npmjs.org/vite/-/vite-7.3.2.tgz",
+      "integrity": "sha512-Bby3NOsna2jsjfLVOHKes8sGwgl4TT0E6vvpYgnAYDIF/tie7MRaFthmKuHx1NSXjiTueXH3do80FMQgvEktRg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/package.json b/package.json
index ac3348c..191c701 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "@types/react": "^19.2.7",
     "@types/react-dom": "^19.2.3",
     "@vitejs/plugin-react": "^5.1.1",
-    "eslint": "^10.0.2",
+    "eslint": "^9.0.0",
     "eslint-plugin-react-hooks": "^7.0.1",
     "eslint-plugin-react-refresh": "^0.4.24",
     "globals": "^16.5.0",
diff --git a/vite.config.js b/vite.config.js
index 6ad85a6..469d468 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -4,6 +4,11 @@ import react from '@vitejs/plugin-react'
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [react()],
+  server: {
+    proxy: {
+      '/api': 'http://localhost:8080',
+    },
+  },
   test: {
     globals: true,
     environment: 'jsdom',