fix(cookbook): diagnose vLLM serves on an NVIDIA driver that is too old (#6727) (#6728)

- Add a diagnosis for "NVIDIA driver on your system is too old" and
  "CUDA driver version is insufficient for CUDA runtime version", the
  errors PyPI's CUDA 13 torch/vLLM builds hit on drivers older than 580.
- Remove the nested _diagnose_serve_output copy in cookbook_routes.py.
  It shadowed the helper and had drifted, so /api/cookbook/tasks/status
  never used the helper's newer diagnoses.
- Capture the tmux pane with -J in the status poll so lines wrapped at
  the pane width do not split error text mid-word.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

routes/cookbook_helpers.py

@@ -1491,6 +1491,20 @@ def _diagnose_serve_output(text: str) -> dict | None:
             "Port is already in use.",
             [{"label": "retry on port 8001", "op": "replace", "flag": "--port", "value": "8001"}],
         ),
+        (
+            # PyPI torch/vLLM wheels now target CUDA 13, which needs driver 580+.
+            # torch: "The NVIDIA driver on your system is too old (found version 12080)";
+            # vLLM kernels: "CUDA driver version is insufficient for CUDA runtime version".
+            r"NVIDIA driver on your system is too old|CUDA driver version is insufficient",
+            "The installed PyTorch/vLLM build needs a newer NVIDIA driver than this server has.",
+            [
+                {
+                    "label": "install builds for the driver's CUDA version, e.g. vLLM's +cu129 wheel from its GitHub release with uv pip install … --torch-backend cu129",
+                    "op": "manual",
+                },
+                {"label": "or update the NVIDIA driver (CUDA 13 builds need driver 580 or newer)", "op": "manual"},
+            ],
+        ),
         (
             r"No CUDA GPUs are available|no GPU.*found|CUDA_VISIBLE_DEVICES.*invalid",
             "No GPUs are visible to the serve process.",