style: add .editorconfig and gofmt action to enforce code formatt…

…ing rules

.editorconfig

@@ -0,0 +1,12 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = tab
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false

.github/workflows/gofmt.yml

@@ -0,0 +1,20 @@
+name: Go Format Check
+
+on: pull_request
+
+jobs:
+  gofmt:
+    name: Verify Go Code Formatting
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v4
+        with:
+          go-version: '^1.20'
+
+      - run: |
+          gofmt -l .
+          if [ -n "$(gofmt -l .)" ]; then
+            echo "Go code is not properly formatted."
+            exit 1