Add GitHub sync helper

setup_github_sync.sh

@@ -0,0 +1,72 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+PROJECT_DIR="/opt/virtuality"
+DEFAULT_BRANCH="main"
+
+if [[ "$EUID" -ne 0 ]]; then
+  echo "Ошибка: запусти от root: sudo bash setup_github_sync.sh"
+  exit 1
+fi
+
+apt update
+apt install -y git openssh-client
+
+if [[ ! -d "$PROJECT_DIR" ]]; then
+  echo "Ошибка: папка проекта не найдена: $PROJECT_DIR"
+  echo "Сначала запусти install_virtuality_node.sh"
+  exit 1
+fi
+
+cd "$PROJECT_DIR"
+
+read -rp "GitHub repo URL [git@github.com:viktor138irk/virtuality.git]: " GITHUB_REPO
+GITHUB_REPO="${GITHUB_REPO:-git@github.com:viktor138irk/virtuality.git}"
+
+read -rp "Git author name [Virtuality Node]: " GIT_NAME
+GIT_NAME="${GIT_NAME:-Virtuality Node}"
+
+read -rp "Git author email [virtuality@local]: " GIT_EMAIL
+GIT_EMAIL="${GIT_EMAIL:-virtuality@local}"
+
+git config --global user.name "$GIT_NAME"
+git config --global user.email "$GIT_EMAIL"
+
+cat > "$PROJECT_DIR/git_sync.sh" <<'EOF'
+#!/usr/bin/env bash
+set -euo pipefail
+
+PROJECT_DIR="/opt/virtuality"
+cd "$PROJECT_DIR"
+
+MESSAGE="${1:-Auto sync $(date '+%Y-%m-%d %H:%M:%S')}"
+
+git add .
+git commit -m "$MESSAGE" || {
+  echo "Нет изменений для commit."
+  exit 0
+}
+
+git push origin main
+EOF
+
+chmod +x "$PROJECT_DIR/git_sync.sh"
+
+if [[ ! -d "$PROJECT_DIR/.git" ]]; then
+  git init
+fi
+
+git branch -M "$DEFAULT_BRANCH"
+
+if git remote get-url origin >/dev/null 2>&1; then
+  git remote set-url origin "$GITHUB_REPO"
+else
+  git remote add origin "$GITHUB_REPO"
+fi
+
+git add .
+git commit -m "Initial Virtuality node base" || true
+git push -u origin "$DEFAULT_BRANCH"
+
+echo "GitHub sync готов."
+echo "Ручная синхронизация: sudo /opt/virtuality/git_sync.sh \"Описание изменений\""