feat(cms): implement Git publishing for content changes and add entrypoint script

- Added a Docker entrypoint script to manage content repository cloning and updates.
- Updated server configuration to include public URL and proxy settings.
- Enhanced content file utilities to return file paths for written entries.
- Introduced GitPublisher class for handling Git operations and deployments.
- Added tests for Git publishing functionality.
- Updated Dockerfile and docker-compose for production setup.
- Added new public PGP key and security.txt for contact information.
- Created new About and Archive pages in the site.
- Updated site configuration to include new navigation links.

apps/cms/.env.example

@@ -6,3 +6,16 @@ ADMIN_JWT_SECRET=tobemodified
 TRANSFER_TOKEN_SALT=tobemodified
 JWT_SECRET=tobemodified
 ENCRYPTION_KEY=tobemodified
+
+# Production reverse-proxy and Git publishing settings. Git publishing stays
+# disabled during local development unless explicitly enabled.
+PUBLIC_URL=http://localhost:1337
+IS_PROXIED=false
+GIT_PUBLISH_ENABLED=false
+CONTENT_REPOSITORY_ROOT=
+CONTENT_GIT_REPOSITORY=andwati/andwati.com
+CONTENT_GIT_BRANCH=main
+CONTENT_GIT_COMMIT_NAME="andwati.com CMS"
+CONTENT_GIT_COMMIT_EMAIL=[email protected]
+GITHUB_TOKEN=
+DOKPLOY_DEPLOY_WEBHOOK_URL=