Introduce ci checks and static analysis

.github/workflows/ci-checks.yml

@@ -0,0 +1,33 @@
+name: CI Lint and Test
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18, 20]
+
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Set Up Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: "npm"
+
+      - name: Install Dependencies
+        run: npm ci
+
+      - run: npx prettier --check .
+      - run: npm run lint:ci
+      - run: npm run type-check
+      - run: npm test

.prettierignore

@@ -0,0 +1 @@
+test/fixtures/

eslint.config.js

@@ -1,14 +1,19 @@
 import globals from "globals";
-import pluginJs from "@eslint/js";
+import js from "@eslint/js";
 import jsdoc from "eslint-plugin-jsdoc";
+import importPlugin from "eslint-plugin-import";
 
 /** @type {import('eslint').Linter.Config[]} */
 export default [
   { languageOptions: { globals: globals.node } },
-  pluginJs.configs.recommended,
+  js.configs.recommended,
   jsdoc.configs["flat/recommended"],
+  importPlugin.flatConfigs.recommended,
   {
     files: ["**/*.js"],
+    languageOptions: {
+      ecmaVersion: 2020,
+    },
     plugins: {
       jsdoc,
     },