Removed the `lobechat` group and its associated configuration from `stacks/ai/ai-frontend.nomad` as this application is no longer required.
Updated the `OLLAMA_BASE_URL` for the `ai-frontend` (OpenWebUI) task to use the concise `ollama` service name (`http://ollama:11434`). This leverages Nomad's built-in service discovery more efficiently, simplifying the URL from `http://ollama.service.consul:11434`.
Additionally, the `memory` allocation for the `ai-frontend` task was increased from `1024` to `4000` to provide more stable resources for the OpenWebUI application.