feat(action): add Markdown to HTML publishing workflow

- Introduce a GitHub Action to convert Markdown files to HTML using Pandoc
- Configure steps for repository checkout, git setup, and branch management
- Include scripts for Markdown conversion, Pandoc installation, and git setup
- Automate the publishing of HTML output to a specified branch

scripts/setup-git.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Optional inputs (positionals) or fallback to environment variables
+AUTHOR_NAME="${1:-${CI_COMMIT_AUTHOR_NAME:-CI Bot}}"
+AUTHOR_EMAIL="${2:-${CI_COMMIT_AUTHOR_EMAIL:-ci@bot.none}}"
+
+echo "🔧 Setting up git author:"
+echo "   Name : $AUTHOR_NAME"
+echo "   Email: $AUTHOR_EMAIL"
+
+git config --global user.name "$AUTHOR_NAME"
+git config --global user.email "$AUTHOR_EMAIL"
+
+# Check if the values were set correctly
+CONFIGURED_NAME=$(git config --global user.name)
+CONFIGURED_EMAIL=$(git config --global user.email)
+
+if [[ "$CONFIGURED_NAME" != "$AUTHOR_NAME" ]]; then
+  echo "❌ Error: Git username was not set correctly!" >&2
+  exit 1
+fi
+
+if [[ "$CONFIGURED_EMAIL" != "$AUTHOR_EMAIL" ]]; then
+  echo "❌ Error: Git email was not set correctly!" >&2
+  exit 1
+fi
+
+echo "✅ Git configuration completed successfully."