added format workflow

.github/workflows/fmt.yaml

@@ -0,0 +1,26 @@
+name: Go Format Check
+
+on:
+  pull_request:
+
+jobs:
+  gofmt-check:
+    name: Check Go Formatting
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: "1.22"
+
+      - name: Check gofmt
+        run: |
+          unformatted=$(gofmt -l .)
+          if [ -n "$unformatted" ]; then
+            echo "The following files are not formatted correctly:"
+            echo "$unformatted"
+            exit 1
+          fi