vue: a .vue file with no script file in its directory or above is not analysed #1745

Symptom: a .vue component is not analysed at all when no .js/.ts file sits in its directory or any parent directory, e.g. src/components/Price.vue next to src/lib/format.js, or a Nuxt pages/index.vue next to utils/helper.js. The same file is analysed once any script file is added at src/ or the root.

Repro

package.json
utils/helper.js:   export function jsHelper(n) { return n + 1; }
pages/index.vue:
  <script setup>
  import { jsHelper } from '../utils/helper.js';
  function onTap() { return jsHelper(2); }
  </script>
  <template><button @click="onTap">{{ jsHelper(1) }}</button></template>

axiomcode index, then axiomcode impact jsHelper

Expected: callers at pages/index.vue:3 and :5 (and onTap called from the template).
Actual: no callers; the graph has no declaration or call site from pages/index.vue. Adding an empty nuxt.config.js at the root makes all three appear.