feat: add GitHub Actions workflow for building and pushing Docker images

test-workflow.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+# Test GitHub Actions workflow locally using act
+
+echo "🧪 Testing GitHub Actions workflow locally..."
+echo ""
+
+# Check if act is installed
+if ! command -v act &> /dev/null; then
+    echo "❌ act is not installed. Install with: brew install act"
+    exit 1
+fi
+
+# Change to slipmatz-web directory
+cd "$(dirname "$0")" || exit 1
+
+echo "📋 Available workflows:"
+act --list
+echo ""
+
+echo "🔍 Dry-run (no execution):"
+echo "   act pull_request --container-architecture linux/amd64 --dryrun"
+echo ""
+
+echo "🏗️  Build only (doesn't push to registry):"
+echo "   act pull_request --container-architecture linux/amd64 -j build-and-push"
+echo ""
+
+echo "🚀 Test push event (simulates main branch push):"
+echo "   act push --container-architecture linux/amd64 -j build-and-push"
+echo ""
+
+# Ask user what to do
+read -p "Run dry-run test? (y/n) " -n 1 -r
+echo
+if [[ $REPLY =~ ^[Yy]$ ]]; then
+    act pull_request --container-architecture linux/amd64 --dryrun
+fi