[Local App Snippet] support non conversational LLMs

[mishig25]

Description

Most GGUF files on the hub are insutrct/conversational. However, not all of them. Previously, local app snippets assumed that all GGUFs are insutrct/conversational.

vLLM

https://huggingface.co/meta-llama/Llama-3.2-3B?local-app=vllm

mishig@machine:~$ curl -X POST "http://localhost:8000/v1/completions" \
        -H "Content-Type: application/json" \
        --data '{
                "model": "meta-llama/Llama-3.2-3B",
                "prompt": "Once upon a time",
                "max_tokens": 150,
                "temperature": 0.5
        }'

{"id":"cmpl-157aad50ba6d45a5a7e2641a3c8157dd","object":"text_completion","created":1728293162,"model":"meta-llama/Llama-3.2-3B","choices":[{"index":0,"text":" there was a man who was very generous and kind to everyone. He was a good man and a good person. One day he was walking down the street and he saw a man who was very poor and starving. The man was so hungry that he was crying and shaking. The man was so hungry that he was crying and shaking. The man was so hungry that he was crying and shaking. The man was so hungry that he was crying and shaking. The man was so hungry that he was crying and shaking. The man was so hungry that he was crying and shaking. The man was so hungry that he was crying and shaking. The man was so hungry that he was crying and shaking. The man was so hungry that he was crying and shaking","logprobs":null,"finish_reason":"length","stop_reason":null,"prompt_logprobs":null}],"usage":{"prompt_tokens":5,"total_tokens":155,"completion_tokens":150}}

llama.cpp

https://huggingface.co/mlabonne/gemma-2b-GGUF?local-app=llama.cpp

llama-cli \
  --hf-repo "mlabonne/gemma-2b-GGUF" \
  --hf-file gemma-2b.Q2_K.gguf \
  -p "Once upon a time "

llama-cpp-python

from llama_cpp import Llama

llm = Llama.from_pretrained(
        repo_id="mlabonne/gemma-2b-GGUF",
        filename="gemma-2b.Q2_K.gguf",
)

output = llm(
        "Once upon a time ",
        max_tokens=512,
        echo=True
)

print(output)

[Vaibhavs10]

Minor nit, but important specially wrt llama.cpp

[mishig25]

Added test cases as the examples are getting more complex and we can be sure not to break any existing examples

packages/tasks/src/local-apps.spec.ts & packages/tasks/src/model-libraries-snippets.spec.ts

[Vaibhavs10]

Suggested change

	` {"role": "user", "content": "Hello!"}`,
	` {"role": "user", "content": "What is the capital of France?"}`,

Minor suggestion: Hello! looks a bit too terse. Perhaps we can unify the Instruct examples to be the same as llama-cpp-python and so on.