ci: enable super-linter

- clang-format (.clang-format)
- commitlint   (.commitlintrc.yml)
- markdownlint (.markdown-lint.yml)
- yamllint     (.yaml-lint.yml)

Signed-off-by: Yi Huang <[email protected]>

.clang-format

@@ -0,0 +1,2 @@
+BasedOnStyle: LLVM
+IndentWidth: 2

.commitlintrc.yml

@@ -0,0 +1,2 @@
+extends:
+  - @commitlint/config-conventional

.github/workflows/super-linter.yml

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+name: super-linter
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout with history
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Run super-linter
+        uses: super-linter/[email protected]
+        env:
+          VALIDATE_ALL_CODEBASE: false   # only check new or edited files
+          # language configurations
+          VALIDATE_CLANG_FORMAT: true
+          VALIDATE_GIT_COMMITLINT: true
+          VALIDATE_MARKDOWN: true
+          VALIDATE_YAML: true
+          # misc configurations
+          CREATE_LOG_FILE: true
+          ENFORCE_COMMITLINT_CONFIGURATION_CHECK: true
+          VALIDATE_GITHUB_ACTIONS: true
+          VALIDATE_GITLEAKS: true
+
+      - name: Upload log file
+        uses: actions/upload-artifact@v4
+        with:
+          path: super-linter.log

.markdown-lint.yml

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+MD007:
+  indent: 2                   # Unordered list indentation
+MD013:
+  line_length: 999            # Line length 80 is far to short. We allow soft wrapped paragraphs and raw code outputs
+MD029: false                  # Ordered list item prefix
+MD033: false                  # Allow inline HTML

.yaml-lint.yml

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+extends: relaxed
+
+rules:
+  indentation:
+    spaces: 2
+    indent-sequences: true