ci: add typechecking, fail fast in CI, and patch typechecking errors (#63)

.github/workflows/ci.yml

@@ -9,7 +9,30 @@ on:
       - main
 
 jobs:
+  check:
+    name: Lint & Type Check
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v1
+        with:
+          bun-version: 1.3.0
+
+      - name: Install dependencies
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: bun install
+
+      - name: Lint & Type Check
+        run: bun run check
+
   build:
+    needs: check
     name: ${{ matrix.name }}
     runs-on: ${{ matrix.runner }}
     strategy:
@@ -43,9 +66,6 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: bun install
 
-      - name: Lint
-        run: bun run lint
-
       - name: Run tests
         run: bun test