add basic ci

.github/workflows/ci.yml

@@ -0,0 +1,20 @@
+name: ci
+
+on:
+  push:
+    branches:
+      - main
+
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: cmake -S . -B build
+      - run: cmake --build build
+      - run: build/test
+      - run: build/test_value

.pre-commit-config.yaml

@@ -0,0 +1,16 @@
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v5.0.0
+    hooks:
+    -   id: check-yaml
+        args: [--allow-multiple-documents]
+- repo: https://github.com/pre-commit/mirrors-clang-format
+  rev: v19.1.1
+  hooks:
+  - id: clang-format
+    files: '.*\.(hpp|cpp|h)'
+- repo: https://github.com/Mateusz-Grzelinski/actionlint-py
+  rev: v1.7.3.17
+  hooks:
+    - id: actionlint
+      additional_dependencies: [shellcheck-py]