When the backend (vllm / sglang / llama_cpp / diffusers) is missing on
the chosen serve target, the runtime-readiness note already flips red
and reads '<backend> missing on <host>.' but offered no fix path.
Append an accent-coloured link that calls openCookbookDependencies with
expandRecipe + the model's repo id, so one click switches to the
Dependencies tab, expands the right backend row's recipe panel, and
pre-selects the model so the user just hits Run.
1fcec32a3c