Add clang-format workflow

.github/workflows/clang_format.yaml

@@ -0,0 +1,63 @@
+name: Clang Format Check
+
+on:
+  push:
+    branches: [ "master" ]
+    paths-ignore:
+      - '**/*.md'
+      - '*.md'
+  pull_request:
+    branches: [ "master" ]
+    paths-ignore:
+      - '**/*.md'
+      - '*.md'
+
+jobs:
+  clang-format:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
+    - name: Install clang-format
+      shell: bash
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y clang-format-19
+
+    - name: Fetch base branch
+      if: github.event_name == 'pull_request'
+      run: |
+        echo "Fetching base branch ${{ github.base_ref }}"
+        git fetch origin ${{ github.base_ref }}:${{ github.base_ref }}
+
+    - name: Get Git Diff
+      id: diff
+      run: |
+        if [[ "${{ github.event_name }}" == "pull_request" ]]; then
+          echo "Getting diff for pull request"
+          git diff origin/${{ github.base_ref }}...HEAD > diff.patch
+        else
+          echo "Getting diff for commit"
+          git diff ${{ github.event.before }} ${{ github.event.after }} > diff.patch
+        fi
+
+    - name: Check formatting
+      shell: bash
+      run: |
+        cat diff.patch | clang-format-diff-19 -p 1 > diff_format.patch
+
+        if [ -s diff_format.patch ]; then
+          echo "❌ Code formatting issues found. See diff_format.patch."
+          exit 1
+        fi
+
+    - name: Upload clang-formatted diff
+      if: failure()
+      uses: actions/upload-artifact@v4
+      with:
+        name: clang-format-diff
+        path: diff_format.patch

.github/workflows/cmake-multi-platform.yml

@@ -6,10 +6,12 @@ on:
     branches: [ "master" ]
     paths-ignore:
       - '**/*.md'
+      - '*.md'
   pull_request:
     branches: [ "master" ]
     paths-ignore:
       - '**/*.md'
+      - '*.md'
 
 jobs:
   run-matrix: