Add Docker build/push and Dockge deploy workflow

- Add api/admin/upload Dockerfiles and .dockerignore
- Add deploy/docker-compose.yml (ports 3001-3004) and deploy/README.md
- Add scripts/docker-build-push.sh for Gitea registry push
- Add Gitea/SSH scripts and Google Drive controller updates

Co-authored-by: Cursor <cursoragent@cursor.com>

admin/.dockerignore

@@ -0,0 +1,13 @@
+.git
+.gitignore
+.env
+.env.*
+!.env.example
+node_modules
+dist
+.idea
+.vscode
+*.log
+Dockerfile
+.dockerignore
+README.md