Refactor LLM configuration to remove llamacpp support

- Removed references to llamacpp from configuration files, scripts, and documentation, streamlining the LLM setup process to focus solely on Ollama.
- Updated environment variables and paths to eliminate llamacpp-related entries, ensuring clarity in the configuration.
- Adjusted CLI commands and help messages to reflect the removal of llamacpp, enhancing user experience and reducing confusion.
- Revised documentation to provide clear guidance on using Ollama exclusively, including updates to setup instructions and runtime options.

docs/setup.md

@@ -49,7 +49,7 @@ chmod +x gpu-rent.sh
 - `env.example` → `.env`
 - `models.example.yaml` → `models.yaml`
 - `extensions.example.yaml` → `extensions.yaml`
-- `ollama-models.example.yaml` / `llamacpp-models.example.yaml` → соответствующие yaml (лаунчер / setup)
+- `ollama-models.example.yaml` → `ollama-models.yaml` (лаунчер / setup)
 - `gpu-rent.vars.example` → `gpu-rent.vars`
 
 Секреты только в `<repo>/.env` и runtime в `<repo>/.gpu-rent/` (оба в `.gitignore`).
@@ -243,7 +243,7 @@ copy models.example.yaml models.yaml
 | --- | --- |
 | `--no-tunnel` | только облако; UI потом: `tunnel --open` |
 | `--no-update` | не `git pull` SwarmUI/extensions |
-| `--ollama` / `--llamacpp` | LLM рядом ([llm.md](llm.md)) |
+| `--ollama` / `--llm ollama` | LLM рядом ([llm.md](llm.md)) |
 | `--no-swarm` / `--llm-only` | только LLM, без SwarmUI (нужен runtime) |
 | `--no-spot` | обычный (не preemptible) тариф |
 | `--flavor ID` | явный flavor (пропускает меню flavor) |