multiple modifications as suggested by super-linter

.github/workflows/super-linter.yml

@@ -0,0 +1,79 @@
+---
+name: Super-Linter
+
+# Provide minimal permissions required for linters to post annotations/checks
+permissions:
+  contents: read
+
+on:
+  push:
+    branches: ["master", "main"]
+  pull_request:
+
+jobs:
+  prechecks:
+    name: Go pre-checks (vet & test)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5
+        with:
+          persist-credentials: false
+
+      - name: Set up Go
+        uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417
+        with:
+          go-version: '1.26'
+
+      - name: Run go vet and tests
+        run: |
+          go version
+          go vet ./...
+          go test ./...
+
+  golangci-lint:
+    name: golangci-lint
+    runs-on: ubuntu-latest
+    needs: prechecks
+    steps:
+      - name: Checkout
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5
+        with:
+          persist-credentials: false
+
+      - name: Set up Go
+        uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417
+        with:
+          go-version: '1.26'
+
+      - name: Install golangci-lint
+        run: |
+          pkg="github.com/golangci/golangci-lint/v2/cmd/golangci-lint"
+          go install "$pkg@v2.11.4"
+          echo "$HOME/go/bin" >> "$GITHUB_PATH"
+
+      - name: Run golangci-lint
+        run: golangci-lint run ./...
+
+  super-linter:
+    name: Super-Linter
+    runs-on: ubuntu-latest
+    needs: prechecks
+    permissions:
+      contents: read
+      checks: write
+      statuses: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5
+        with:
+          persist-credentials: false
+
+      - name: Run Super-Linter
+        uses: github/super-linter@454ba4482ce2cd0c505bc592e83c06e1e37ade61
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          DEFAULT_BRANCH: master
+          # Enable all linters but skip GO (handled by prechecks).
+          VALIDATE: true
+          VALIDATE_GO: false