feat(llama.cpp): add llama.cpp comprehensive recipes

Covers building, installing, running models with llama-server, and complete uninstallation of llama.cpp.

recipes/llama.cpp/02_run-models-on-llama-cpp.md

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+# Run Models on llama.cpp
+
+This recipe runs a model with `llama-server` inside a persistent `tmux` session, downloading it directly from Hugging Face.
+
+## Install tmux
+
+```bash
+sudo apt install -y tmux
+```
+
+## Start a tmux Session
+
+```bash
+tmux new -s llama
+```
+
+## Run the Model Server
+
+Replace:
+
+- `<REPO>` with the Hugging Face model repo (e.g. `deepreinforce-ai/Ornith-1.0-9B-GGUF`)
+- `<HOST>` by default `0.0.0.0` hear all network interfaces
+- `<PORT>` with the port to serve on (e.g. `8000`)
+- `<CONTEXT_SIZE>` with the context window size (e.g. `262144`)
+
+```bash
+llama-server -hf <REPO> --host <HOST> --port <PORT> -c <CONTEXT_SIZE>
+```
+
+## Detach from the Session
+
+Press:
+
+```text
+Ctrl+B, D
+```
+
+## List tmux Sessions
+
+```bash
+tmux ls
+```
+
+Expected output:
+
+```text
+llama: 1 windows (created ...)
+```
+
+## Reattach to the Session
+
+```bash
+tmux attach -t llama
+```
+
+## Verify Server is Running
+
+Replace `<PORT>` with the configured port.
+
+```bash
+curl http://localhost:<PORT>/health
+```
+
+Expected output:
+
+```json
+{"status":"ok"}
+```
+
+## Troubleshooting
+
+### Port already in use
+
+Verify that no other process is bound to the port.
+
+```bash
+sudo ss -tulpn | grep <PORT>
+```
+
+### Session not found
+
+List active sessions and verify the name.
+
+```bash
+tmux ls
+```
+
+### Server not responding
+
+Reattach to the session and check the server logs.
+
+```bash
+tmux attach -t llama
+```