Add CI checks for lint, format, types, and build (#1) (#46)

* Add CI checks for lint, format, types, and build

* Use Node 22 for CI checks

* Use v5 GitHub Actions in CI

Author: elldeeone

.github/workflows/ci.yml

@@ -0,0 +1,36 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  checks:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v5
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 22
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run ESLint
+        run: npm run lint
+
+      - name: Check formatting
+        run: npm run format:check
+
+      - name: Check types
+        run: npm run types:check
+
+      - name: Build site
+        run: npm run build

package.json

@@ -8,6 +8,7 @@
     "start": "next start",
     "types:check": "fumadocs-mdx && next typegen && tsc --noEmit",
     "postinstall": "fumadocs-mdx",
+    "format:check": "prettier --check .",
     "format": "prettier --write .",
     "lint": "eslint"
   },