feat: add ByteStash service for code snippet management

- Add ByteStash Docker service configuration and deployment
- Configure subdomain routing through Caddy
- Add DNS record for ByteStash subdomain
- Update development service category to include ByteStash

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

roles/docker/tasks/development/main.yml

@@ -9,3 +9,7 @@
   import_tasks: codeserver.yml
   tags: codeserver
 
+- name: Install bytestash
+  import_tasks: bytestash.yml
+  tags: bytestash
+