chore(#11): FE/BE/Embedded 코드 스타일 및 PR 자동 검사 도입

.github/workflows/code-style.yml

@@ -0,0 +1,80 @@
+name: Code Style Check
+
+on:
+  pull_request:
+    branches:
+      - develop
+      - main
+  push:
+    branches:
+      - develop
+      - main
+
+jobs:
+  backend-style:
+    name: Backend Ruff
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install backend dev dependencies
+        working-directory: backend
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install -r requirements-dev.txt
+
+      - name: Run Ruff lint
+        working-directory: backend
+        run: python -m ruff check .
+
+      - name: Run Ruff format check
+        working-directory: backend
+        run: python -m ruff format --check .
+
+  frontend-style:
+    name: Frontend Prettier
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22"
+          cache: "npm"
+          cache-dependency-path: frontend/package-lock.json
+
+      - name: Install frontend dependencies
+        working-directory: frontend
+        run: npm ci
+
+      - name: Run Prettier check
+        working-directory: frontend
+        run: npm run format:check
+
+  embedded-style:
+    name: Embedded clang-format
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install clang-format
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y clang-format
+
+      - name: Run clang-format check
+        run: |
+          git ls-files 'embedded/ssccam/**/*.c' 'embedded/ssccam/**/*.h' \
+            | xargs clang-format --dry-run -Werror

.gitignore

@@ -4,6 +4,7 @@ uploaded_images/
 .devcontainer/
 .clangd
 Kconfig.projbuild
+node_modules/
 
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 # Python