Use dedicated Node runner

.gitea/workflows/tests.yml

@@ -5,7 +5,7 @@ on:
   workflow_dispatch:
 jobs:
   tests:
-    runs-on: bs
+    runs-on: bs-node
     steps:
       - uses: https://github.com/actions/checkout@v4
       - uses: https://github.com/actions/setup-python@v5

README.md

@@ -157,7 +157,7 @@ disk failures or full process restarts. The original standalone unittest command
 still works without installing HA.
 
 `.gitea/workflows/tests.yml` runs the same checks for pushes and pull requests on
-the configured `bs` Actions runner label. Repository Actions must be enabled.
+the dedicated `bs-node` Actions runner label (`bs-node:docker://node:22-bookworm`). Repository Actions must be enabled.
 The runner must support checkout/setup-python and Python 3.13 dependencies. Dependencies and action downloads need internet access in CI;
 model inference does not. Remote CI execution has not yet been verified. Local
 validation used macOS and Python 3.13; Linux runner validation remains necessary.