Replace black/pylint/super-linter with ruff

.github/workflows/ruff.yml

@@ -0,0 +1,68 @@
+---
+name: Lint with Ruff
+
+defaults:
+  run:
+    shell: bash
+
+on:
+  push:
+    branches: [master, dev]
+  pull_request:
+    branches: [master, dev]
+    paths:
+      - "**/*.py"
+      - "**/*.yml"
+      - "**/*.yaml"
+      - "pyproject.toml"
+      - ".github/workflows/ruff.yml"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  lint:
+    name: Lint Code
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+
+      - name: Run Ruff linter
+        uses: astral-sh/ruff-action@v1
+        with:
+          args: "check slither/ tests/ scripts/"
+
+      # Formatting check disabled to avoid changes to existing code
+      # - name: Run Ruff formatter check
+      #   run: |
+      #     echo "::group::Checking formatting with Ruff"
+      #     ruff format --check slither/ tests/ scripts/ || FORMAT_EXIT=$?
+      #     echo "::endgroup::"
+      #     if [ "${FORMAT_EXIT:-0}" -ne 0 ]; then
+      #       echo "❌ Formatting check failed. Run 'make reformat' or 'ruff format' locally to fix formatting."
+      #       exit $FORMAT_EXIT
+      #     fi
+      #     echo "✅ Formatting check passed"
+
+      - name: Set up Python for yamllint
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install and run yamllint
+        run: |
+          # Use uv for fast installation
+          curl -LsSf https://astral.sh/uv/install.sh | sh
+          export PATH="$HOME/.local/bin:$PATH"
+          uv tool install yamllint
+          echo "::group::Running yamllint"
+          uvx yamllint .github/ || YAML_EXIT=$?
+          echo "::endgroup::"
+          if [ "${YAML_EXIT:-0}" -ne 0 ]; then
+            echo "❌ YAML linting failed. Fix the YAML syntax errors shown above."
+            exit $YAML_EXIT
+          fi
+          echo "✅ YAML linting passed"