chore: add pre-commit hooks and commitlint configuration

- Add comprehensive pre-commit configuration with hooks for:
  - Code quality checks (black, isort, pylint, codespell)
  - Security scanning (gitleaks)
  - Line ending and whitespace fixes
- Add commitlint configuration with conventional commit format
- Configure signed-off-by trailer requirement for commits

Signed-off-by: Yihuang Yu <[email protected]>

Author: PaulYuuu

.pre-commit-config.yaml

@@ -0,0 +1,49 @@
+default_install_hook_types: [pre-commit, commit-msg]
+default_stages: [pre-commit]
+repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v6.0.0
+  hooks:
+    - id: check-added-large-files
+      args: ['--maxkb=5120']
+    - id: check-ast
+    - id: check-yaml
+      exclude: .cirrus.yml
+    - id: detect-private-key
+    - id: end-of-file-fixer
+    - id: mixed-line-ending
+      args: ['--fix=lf']
+    - id: no-commit-to-branch
+    - id: trailing-whitespace
+- repo: https://github.com/gitleaks/gitleaks
+  rev: v8.28.0
+  hooks:
+    - id: gitleaks
+- repo: https://github.com/pycqa/isort
+  rev: 6.1.0
+  hooks:
+    - id: isort
+      args: ['--profile=black']
+- repo: https://github.com/psf/black
+  rev: 25.9.0
+  hooks:
+    - id: black
+- repo: local
+  hooks:
+    - id: pylint
+      entry: static-checks/check-lint
+      language: script
+      additional_dependencies:
+        - pylint==4.0.0
+      pass_filenames: false
+- repo: https://github.com/codespell-project/codespell
+  rev: v2.4.1
+  hooks:
+    - id: codespell
+      args: ['-I=spell.ignore']
+- repo: https://github.com/alessandrojcm/commitlint-pre-commit-hook
+  rev: v9.23.0
+  hooks:
+    - id: commitlint
+      additional_dependencies: ['@commitlint/config-conventional']
+      stages: [commit-msg]

commitlint.config.ts

@@ -0,0 +1,36 @@
+import type { UserConfig } from '@commitlint/types'
+
+const config: UserConfig = {
+  extends: ['@commitlint/config-conventional'],
+  rules: {
+    // Body
+    'body-leading-blank': [2, 'always'],
+    'body-empty': [0, 'never'],
+    'body-min-length': [0, 'always', 1],
+    'body-case': [0, 'always', 'lower-case'],
+
+    // Footer
+    'footer-leading-blank': [2, 'always'],
+    'footer-empty': [0, 'never'],
+    'footer-max-length': [0, 'always', 72],
+
+    // Header
+    'header-case': [0, 'always', 'lower-case'],
+    'header-full-stop': [2, 'never', '.'],
+    'header-max-length': [2, 'always', 72],
+    'header-min-length': [2, 'always', 1],
+
+    // Scope / Subject
+    'scope-case': [0, 'always', 'lower-case'],
+    'subject-case': [0, 'always', 'lower-case'],
+    'subject-empty': [0, 'never'],
+    'subject-full-stop': [2, 'never', '.'],
+
+    // Signed-off-by
+    'signed-off-by': [2, 'always', 'Signed-off-by:'],
+  },
+  helpUrl:
+    'https://avocado-framework.readthedocs.io/en/latest/guides/contributor/chapters/styleguides.html#commit-style-guide',
+}
+
+export default config