diff --git a/.gitea/workflows/code_check.yml b/.gitea/workflows/code_check.yml
index 31ed2f6b..18bd0473 100644
--- a/.gitea/workflows/code_check.yml
+++ b/.gitea/workflows/code_check.yml
@@ -24,6 +24,16 @@ on:
                 required: true
                 type: boolean
                 default: true
+            run_adminfront_tests:
+                description: "Run adminfront Playwright tests"
+                required: true
+                type: boolean
+                default: true
+            run_devfront_tests:
+                description: "Run devfront Playwright tests"
+                required: true
+                type: boolean
+                default: true
 
 jobs:
     lint:
@@ -100,8 +110,49 @@ jobs:
 
             - name: Run backend tests
               run: |
+                  mkdir -p reports
+                  set +e
                   cd backend
-                  go test -v ./...
+                  go test -v ./... 2>&1 | tee ../reports/backend-test.log
+                  test_exit_code=${PIPESTATUS[0]}
+                  cd ..
+
+                  if [ "$test_exit_code" -ne 0 ]; then
+                    {
+                      echo "# Backend Test Failure Report"
+                      echo
+                      echo "- Workflow: \`${GITHUB_WORKFLOW:-Code Check}\`"
+                      echo "- Job: \`backend-tests\`"
+                      echo "- Exit Code: \`$test_exit_code\`"
+                      echo
+                      echo "## Command"
+                      echo "\`go test -v ./...\`"
+                      echo
+                      echo "## Log Tail (last 200 lines)"
+                      echo '```text'
+                      tail -n 200 reports/backend-test.log
+                      echo '```'
+                    } > reports/backend-test-failure-report.md
+                  fi
+
+                  exit "$test_exit_code"
+
+            - name: Publish backend failure summary
+              if: ${{ failure() }}
+              run: |
+                  if [ -f reports/backend-test-failure-report.md ]; then
+                    cat reports/backend-test-failure-report.md >> "$GITHUB_STEP_SUMMARY"
+                  fi
+
+            - name: Upload backend failure report artifact
+              if: ${{ failure() }}
+              uses: actions/upload-artifact@v4
+              with:
+                  name: backend-test-failure-report
+                  path: |
+                      reports/backend-test-failure-report.md
+                      reports/backend-test.log
+                  if-no-files-found: ignore
 
     userfront-tests:
         needs: lint
@@ -119,32 +170,269 @@ jobs:
 
             - name: Ensure browser for Flutter web tests
               run: |
-                  if command -v google-chrome >/dev/null 2>&1 || command -v google-chrome-stable >/dev/null 2>&1 || command -v chromium-browser >/dev/null 2>&1 || command -v chromium >/dev/null 2>&1; then
-                    echo "Chrome/Chromium already installed."
+                  has_runnable_browser=false
+                  for candidate in google-chrome google-chrome-stable chromium chromium-browser; do
+                    if command -v "$candidate" >/dev/null 2>&1 && "$candidate" --version >/dev/null 2>&1; then
+                      has_runnable_browser=true
+                      break
+                    fi
+                  done
+
+                  if [ "$has_runnable_browser" = true ]; then
+                    echo "Runnable Chrome/Chromium already installed."
                     exit 0
                   fi
 
                   if command -v sudo >/dev/null 2>&1; then
                     sudo apt-get update
-                    sudo apt-get install -y chromium-browser || sudo apt-get install -y chromium
+                    sudo apt-get install -y chromium || sudo apt-get install -y chromium-browser
                   else
                     apt-get update
-                    apt-get install -y chromium-browser || apt-get install -y chromium
+                    apt-get install -y chromium || apt-get install -y chromium-browser
                   fi
 
+                  for candidate in google-chrome google-chrome-stable chromium chromium-browser; do
+                    if command -v "$candidate" >/dev/null 2>&1 && "$candidate" --version >/dev/null 2>&1; then
+                      echo "Installed browser: $candidate"
+                      exit 0
+                    fi
+                  done
+
+                  echo "No runnable Chrome/Chromium found after install."
+                  exit 1
+
             - name: Run userfront tests
               run: |
                   cd userfront
                   if [ -d test ]; then
-                    CHROME_BIN="$(command -v google-chrome || command -v google-chrome-stable || command -v chromium-browser || command -v chromium || true)"
+                    CHROME_BIN=""
+                    for candidate in google-chrome google-chrome-stable chromium chromium-browser; do
+                      if command -v "$candidate" >/dev/null 2>&1 && "$candidate" --version >/dev/null 2>&1; then
+                        CHROME_BIN="$(command -v "$candidate")"
+                        break
+                      fi
+                    done
                     if [ -z "$CHROME_BIN" ]; then
                       echo "Chrome/Chromium not found for web tests."
                       exit 1
                     fi
 
+                    echo "Using browser: $CHROME_BIN"
                     export CHROME_EXECUTABLE="$CHROME_BIN"
-                    flutter test
-                    flutter test --platform chrome test/locale_storage_platform_test.dart
+                    mkdir -p ../reports
+                    set +e
+                    flutter test 2>&1 | tee ../reports/userfront-test-vm.log
+                    vm_test_exit_code=${PIPESTATUS[0]}
+
+                    web_test_exit_code=0
+                    if [ "$vm_test_exit_code" -eq 0 ]; then
+                      flutter test --platform chrome test/locale_storage_platform_test.dart 2>&1 | tee ../reports/userfront-test-web.log
+                      web_test_exit_code=${PIPESTATUS[0]}
+                    fi
+                    set -e
+
+                    if [ "$vm_test_exit_code" -ne 0 ] || [ "$web_test_exit_code" -ne 0 ]; then
+                      {
+                        echo "# Userfront Test Failure Report"
+                        echo
+                        echo "- Workflow: \`${GITHUB_WORKFLOW:-Code Check}\`"
+                        echo "- Job: \`userfront-tests\`"
+                        echo "- Browser: \`$CHROME_BIN\`"
+                        echo "- VM Test Exit Code: \`$vm_test_exit_code\`"
+                        echo "- Web Test Exit Code: \`$web_test_exit_code\`"
+                        echo
+                        echo "## Commands"
+                        echo "1. \`flutter test\`"
+                        echo "2. \`flutter test --platform chrome test/locale_storage_platform_test.dart\`"
+                        echo
+                        if [ -f ../reports/userfront-test-vm.log ]; then
+                          echo "## VM Test Log Tail (last 200 lines)"
+                          echo '```text'
+                          tail -n 200 ../reports/userfront-test-vm.log
+                          echo '```'
+                          echo
+                        fi
+                        if [ -f ../reports/userfront-test-web.log ]; then
+                          echo "## Web Test Log Tail (last 200 lines)"
+                          echo '```text'
+                          tail -n 200 ../reports/userfront-test-web.log
+                          echo '```'
+                        fi
+                      } > ../reports/userfront-test-failure-report.md
+                      exit 1
+                    fi
                   else
                     echo "No userfront tests: skipping (test/ directory not found)."
                   fi
+
+            - name: Publish userfront failure summary
+              if: ${{ failure() }}
+              run: |
+                  if [ -f reports/userfront-test-failure-report.md ]; then
+                    cat reports/userfront-test-failure-report.md >> "$GITHUB_STEP_SUMMARY"
+                  fi
+
+            - name: Upload userfront failure report artifact
+              if: ${{ failure() }}
+              uses: actions/upload-artifact@v4
+              with:
+                  name: userfront-test-failure-report
+                  path: |
+                      reports/userfront-test-failure-report.md
+                      reports/userfront-test-vm.log
+                      reports/userfront-test-web.log
+                  if-no-files-found: ignore
+
+    adminfront-tests:
+        needs: lint
+        if: ${{ always() && (github.event_name != 'workflow_dispatch' || inputs.run_adminfront_tests == true) }}
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v4
+
+            - name: Setup Node.js
+              uses: actions/setup-node@v4
+              with:
+                  node-version: "20"
+                  cache: "npm"
+                  cache-dependency-path: adminfront/package-lock.json
+
+            - name: Install adminfront dependencies
+              run: |
+                  cd adminfront
+                  npm ci
+
+            - name: Provision browsers for adminfront tests
+              run: |
+                  cd adminfront
+                  npx playwright install --with-deps
+
+            - name: Run adminfront tests
+              run: |
+                  mkdir -p reports
+                  set +e
+                  cd adminfront
+                  npm test 2>&1 | tee ../reports/adminfront-test.log
+                  test_exit_code=${PIPESTATUS[0]}
+                  cd ..
+                  set -e
+
+                  if [ "$test_exit_code" -ne 0 ]; then
+                    {
+                      echo "# Adminfront Test Failure Report"
+                      echo
+                      echo "- Workflow: \`${GITHUB_WORKFLOW:-Code Check}\`"
+                      echo "- Job: \`adminfront-tests\`"
+                      echo "- Exit Code: \`$test_exit_code\`"
+                      echo
+                      echo "## Commands"
+                      echo "1. \`cd adminfront\`"
+                      echo "2. \`npm ci\`"
+                      echo "3. \`npx playwright install --with-deps\`"
+                      echo "4. \`npm test\`"
+                      echo
+                      echo "## Log Tail (last 200 lines)"
+                      echo '```text'
+                      tail -n 200 reports/adminfront-test.log
+                      echo '```'
+                    } > reports/adminfront-test-failure-report.md
+                  fi
+
+                  exit "$test_exit_code"
+
+            - name: Publish adminfront failure summary
+              if: ${{ failure() }}
+              run: |
+                  if [ -f reports/adminfront-test-failure-report.md ]; then
+                    cat reports/adminfront-test-failure-report.md >> "$GITHUB_STEP_SUMMARY"
+                  fi
+
+            - name: Upload adminfront failure report artifact
+              if: ${{ failure() }}
+              uses: actions/upload-artifact@v4
+              with:
+                  name: adminfront-test-failure-report
+                  path: |
+                      reports/adminfront-test-failure-report.md
+                      reports/adminfront-test.log
+                      adminfront/playwright-report
+                      adminfront/test-results
+                  if-no-files-found: ignore
+
+    devfront-tests:
+        needs: lint
+        if: ${{ always() && (github.event_name != 'workflow_dispatch' || inputs.run_devfront_tests == true) }}
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v4
+
+            - name: Setup Node.js
+              uses: actions/setup-node@v4
+              with:
+                  node-version: "20"
+                  cache: "npm"
+                  cache-dependency-path: devfront/package-lock.json
+
+            - name: Install devfront dependencies
+              run: |
+                  cd devfront
+                  npm ci
+
+            - name: Provision browsers for devfront tests
+              run: |
+                  cd devfront
+                  npx playwright install --with-deps
+
+            - name: Run devfront tests
+              run: |
+                  mkdir -p reports
+                  set +e
+                  cd devfront
+                  npm test 2>&1 | tee ../reports/devfront-test.log
+                  test_exit_code=${PIPESTATUS[0]}
+                  cd ..
+                  set -e
+
+                  if [ "$test_exit_code" -ne 0 ]; then
+                    {
+                      echo "# Devfront Test Failure Report"
+                      echo
+                      echo "- Workflow: \`${GITHUB_WORKFLOW:-Code Check}\`"
+                      echo "- Job: \`devfront-tests\`"
+                      echo "- Exit Code: \`$test_exit_code\`"
+                      echo
+                      echo "## Commands"
+                      echo "1. \`cd devfront\`"
+                      echo "2. \`npm ci\`"
+                      echo "3. \`npx playwright install --with-deps\`"
+                      echo "4. \`npm test\`"
+                      echo
+                      echo "## Log Tail (last 200 lines)"
+                      echo '```text'
+                      tail -n 200 reports/devfront-test.log
+                      echo '```'
+                    } > reports/devfront-test-failure-report.md
+                  fi
+
+                  exit "$test_exit_code"
+
+            - name: Publish devfront failure summary
+              if: ${{ failure() }}
+              run: |
+                  if [ -f reports/devfront-test-failure-report.md ]; then
+                    cat reports/devfront-test-failure-report.md >> "$GITHUB_STEP_SUMMARY"
+                  fi
+
+            - name: Upload devfront failure report artifact
+              if: ${{ failure() }}
+              uses: actions/upload-artifact@v4
+              with:
+                  name: devfront-test-failure-report
+                  path: |
+                      reports/devfront-test-failure-report.md
+                      reports/devfront-test.log
+                      devfront/playwright-report
+                      devfront/test-results
+                  if-no-files-found: ignore
diff --git a/README.md b/README.md
index f0ed1c14..8d08715a 100644
--- a/README.md
+++ b/README.md
@@ -301,6 +301,51 @@ KETO_WRITE_URL = "http://keto:4467"
 - **Flutter(User)**: `userfront/lib/i18n.dart`에서 `tr(key, fallback, params)` 사용. `locales/*.toml`을 `tools/i18n-scanner/gen-flutter-i18n.js`로 `userfront/lib/i18n_data.dart`에 사전 생성합니다.
 - **검증**: `node tools/i18n-scanner/index.js`로 코드-키-로케일 동기화 상태를 점검합니다.
 
+## 🧪 Code Check CI
+워크플로우 파일: `.gitea/workflows/code_check.yml`
+
+### 트리거
+- `push` (`dev` 브랜치)
+- `pull_request` (`dev` 대상)
+- `workflow_dispatch` (수동 실행)
+
+### workflow_dispatch 입력값
+- `run_lint`: Go/Flutter lint 실행 여부
+- `run_backend_tests`: backend 테스트 실행 여부
+- `run_userfront_tests`: userfront 테스트 실행 여부
+- `run_adminfront_tests`: adminfront 테스트 실행 여부
+- `run_devfront_tests`: devfront 테스트 실행 여부
+
+### 실행 잡
+- `lint`
+- `backend-tests`
+- `userfront-tests`
+- `adminfront-tests`
+- `devfront-tests`
+
+### 프런트 테스트 브라우저 프리비저닝 정책
+- `userfront-tests`
+  - 실행 가능한 Chrome/Chromium을 탐지하고, 없으면 설치 후 테스트 실행
+  - `CHROME_EXECUTABLE` 지정 후 웹 테스트를 실행
+- `adminfront-tests`, `devfront-tests`
+  - Playwright 기반 테스트
+  - `npx playwright install --with-deps`로 브라우저/OS 의존성을 사전 설치
+
+### 실패 보고서 확인 방법
+테스트가 실패하면 다음이 자동 생성됩니다.
+- Job Summary: 실패 원인 요약(Markdown) 즉시 확인
+- Artifact: 상세 로그/리포트 다운로드
+  - `backend-test-failure-report`
+  - `userfront-test-failure-report`
+  - `adminfront-test-failure-report`
+  - `devfront-test-failure-report`
+
+### userfront의 `skipped` 테스트 안내
+- `locale_storage_platform_test.dart`는 웹 전용 테스트(`kIsWeb`)를 포함합니다.
+- 따라서 일반 `flutter test`(VM)에서는 일부 테스트가 `skipped` 되는 것이 정상입니다.
+- 실제 웹 실행 검증은 별도 단계에서 수행합니다.
+  - `flutter test --platform chrome test/locale_storage_platform_test.dart`
+
 ### 로컬 개발 (Manual)
 Docker 없이는 개발할 수 없지만 Backend 및 [user/admin/dev]Front 코드는 개발모드로 수정하며 개발가능.
 백그라운드로 infra 및 ory stack이 구동중이라는 가정