build: Add building to CI

.gitea/workflows/ci.yml

@@ -10,3 +10,17 @@ jobs:
       - name: Install dependencies
         run: bun i
       - run: bun run check
+  
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: oven-sh/setup-bun@v2
+      - name: Install dependencies
+        run: bun i
+      - run: bun run build
+      - name: Upload build artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: dist
+          path: dist/