feat: add PR validation workflow and contribution checks

tools/setup-hooks.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# Setup script for git hooks
+echo "Setting up git hooks..."
+
+# Install husky
+npm install --save-dev husky
+
+# Initialize husky
+npx husky init
+
+# Create pre-commit hook
+cat > .husky/pre-commit << 'EOF'
+#!/usr/bin/env sh
+. "$(dirname -- "$0")/_/husky.sh"
+
+# Run validation checks before commit
+echo "Running pre-commit checks..."
+
+npm run validate
+npm run format:check
+npm run lint
+
+if [ $? -ne 0 ]; then
+  echo "❌ Pre-commit checks failed. Please fix the issues before committing."
+  echo "   Run 'npm run format' to fix formatting issues"
+  echo "   Run 'npm run lint:fix' to fix some lint issues"
+  exit 1
+fi
+
+echo "✅ Pre-commit checks passed!"
+EOF
+
+chmod +x .husky/pre-commit
+
+echo "✅ Git hooks setup complete!"
+echo "Now commits will be validated before they're created."