feat: add comprehensive documentation and deployment scripts

- Created new documentation files including TROUBLESHOOTING.md, CONFIGURATION.md, and CONTRIBUTING.md.
- Added deployment guide with automated and manual instructions.
- Introduced new YAML configurations for Kubernetes resources and Helm charts.
- Implemented a deployment script for setting up the GitOps infrastructure.

scripts/deploy-to-cluster.sh

@@ -0,0 +1,60 @@
+#!/usr/bin/bash
+set -euo pipefail
+
+# ----
+
+install_cert_manager() {
+  clear
+  echo "----------------------------------------"
+  echo " ⌛ Install Cert-Manager"
+  echo " ⌛ Install ArgoCD"
+  echo " ⌛ Setup Sealed Secrets"
+  echo " ⌛ Finish Setup"
+  echo "----------------------------------------"
+
+  echo "🚀 Installing Cert-Manager..."
+  kustomize build --enable-helm ../cert-manager/eu-central-1 | kubectl apply -f -
+  echo "✅ Cert-Manager installed successfully!"
+}
+
+
+# ----
+
+install_argocd() {
+  clear
+  echo "----------------------------------------"
+  echo " ✅ Install Cert-Manager"
+  echo " ⌛ Install ArgoCD"
+  echo " ⌛ Setup Sealed Secrets"
+  echo " ⌛ Finish Setup"
+  echo "----------------------------------------"
+
+  echo "🚀 Installing ArgoCD..."
+  kustomize build --enable-helm ../argocd/eu-central-1 | kubectl apply -f -
+  echo "✅ ArgoCD installed successfully!"
+}
+
+
+# ----
+
+install_cert_manager
+install_argocd
+
+kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.15.1/deploy/static/provider/baremetal/deploy.yaml
+kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
+
+sleep 30s
+kustomize build ../git/local | kubectl apply -f -
+sleep 5s
+
+kubectl apply -f ../local/root-apps-app.yaml
+
+clear
+
+ARGO_PW=$(kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 --decode)
+
+echo "----------------------------------------"
+echo " 🎉 Kubernetes local cluster setup complete!"
+echo " 🎉 Access ArgoCD at: https://localhost:31443"
+echo " 🎉 Default login: admin / $ARGO_PW"
+echo "----------------------------------------"