🤖 feat: simplify CI/CD structure and add Docker workflow

- Rename ci-cd.yaml to go-ci-cd.yaml for clarity
- Add dockerimage.yaml workflow for Docker builds
- Create Dockerfile for production deployment
- Add comprehensive CI/CD documentation
- Create contributor-quickstart.sh for easy validation
- Update all scripts to handle both workflow files
- Fix event triggers to run on all relevant pushes
- Remove redundant YAML syntax validation
- Improve workflow validation for Arcodange conventions

BREAKING CHANGE: ci-cd.yaml renamed to go-ci-cd.yaml
See scripts/cicd/README.md for complete documentation.

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

scripts/cicd/contributor-quickstart.sh

@@ -0,0 +1,78 @@
+#!/bin/bash
+# Simple CI/CD validation for new contributors
+# Works without Docker - just validates the essentials
+
+set -e
+
+echo "🚀 DanceLessonsCoach Contributor Quick Start"
+echo "=========================================="
+echo ""
+echo "This script helps you validate your changes before submitting a PR."
+echo "It doesn't require Docker or complex setup."
+echo ""
+
+# 1. Check Go is installed
+echo "1. Checking Go installation..."
+if ! command -v go >/dev/null 2>&1; then
+    echo "❌ Go is not installed. Please install Go 1.26.1+"
+    echo "   Download: https://go.dev/dl/"
+    exit 1
+fi
+go_version=$(go version | grep -o 'go[0-9.]*')
+echo "✅ Go $go_version found"
+
+# 2. Run Go tests
+echo ""
+echo "2. Running Go tests..."
+if go test ./...; then
+    echo "✅ All Go tests passed"
+else
+    echo "❌ Some tests failed. Please fix and try again."
+    exit 1
+fi
+
+# 3. Check formatting
+echo ""
+echo "3. Checking code formatting..."
+if [ -n "$(go fmt ./...)" ]; then
+    echo "❌ Code formatting issues found"
+    echo "   Run: go fmt ./..."
+    exit 1
+fi
+echo "✅ Code is properly formatted"
+
+# 4. Run Go vet
+echo ""
+echo "4. Running Go vet..."
+if go vet ./...; then
+    echo "✅ Go vet passed"
+else
+    echo "❌ Go vet found issues"
+    exit 1
+fi
+
+# 5. Validate workflows (no Docker required)
+echo ""
+echo "5. Validating CI/CD workflows..."
+if [ -f "scripts/cicd/validate-workflow.sh" ]; then
+    if ./scripts/cicd/validate-workflow.sh; then
+        echo "✅ Workflow validation passed"
+    else
+        echo "⚠️  Workflow validation issues (not critical)"
+    fi
+else
+    echo "ℹ️  Workflow validation script not found"
+fi
+
+echo ""
+echo "🎉 All checks passed!"
+echo "=========================================="
+echo ""
+echo "Your changes are ready to submit! 🚀"
+echo ""
+echo "Next steps:"
+echo "  1. Commit your changes: git commit -m 'feat: your feature'"
+echo "  2. Push to your branch: git push origin your-branch"
+echo "  3. Create a Pull Request"
+echo ""
+echo "The CI/CD pipeline will run automatically on your PR!"