Admin dashboard: breadcrumb select's combobox input has no accessible name (axe label, critical)

Describe the Bug

On the default admin dashboard, the breadcrumb select's combobox input has no accessible name. axe reports label (critical). A screen-reader user reaching it hears no indication of what the control selects.

Measured on a blank install:

const inp = document.querySelector('.dashboard-breadcrumb-select input')
inp.id                               // "react-select-…-input"
inp.getAttribute('role')             // "combobox"
inp.getAttribute('aria-label')       // null
inp.getAttribute('aria-labelledby')  // null
document.querySelector(`label[for="${inp.id}"]`)  // null
inp.tabIndex                         // 0 — reachable, and unnamed

The control is the dashboard breadcrumb ReactSelect rendered by DashboardStepNav. Its call site passes no accessible name:

// @payloadcms/next/dist/views/Dashboard/Default/ModularDashboard/DashboardStepNav.js
<ReactSelect
  className="dashboard-breadcrumb-select"
  isClearable={false}
  isSearchable={false}
  onChange={handleChange}
  options
  placeholder={t("general:dashboard")}
  value={{ label: t("general:dashboard"), value: "dashboard" }}
/>

There is no aria-label, aria-labelledby, or inputId bound to a visible label. react-select accepts aria-label / aria-labelledby and forwards them to the input, so supplying one at this call site would give the control a name. Note the placeholder and value.label are not a substitute — neither becomes the input's accessible name.

This needs no collections, fields, or configuration; it is on the dashboard of every install. A sibling defect on the same control — the dropdown indicator being focusable while aria-hidden — is filed separately.

Link to the code that reproduces this issue

https://github.com/rjbashar/payload-a11y-repro

Reproduction Steps

1. createdb payload_a11y_repro, then cp .env.example .env and set DATABASE_URI / PAYLOAD_SECRET
2. pnpm install
3. pnpm build && pnpm start — a production build; see the README note, as pnpm dev does not hydrate the admin in this minimal app and the dashboard appears empty
4. Create the first user:
   curl -X POST http://127.0.0.1:3210/api/users/first-register -H 'Content-Type: application/json' -d '{"email":"repro@example.test","password":"Repro-passw0rd!"}'
5. Sign in at /admin/login, landing on /admin
6. Run the console snippet above, or node verify.mjs from the repo

Restricted to this rule:

{ "id": "label", "impact": "critical", "nodes": 1, "targets": ["#react-select-_r_1_-input"] }

Which area(s) are affected?

area: ui, area: accessibility

Environment Info

payload                       3.85.2
@payloadcms/next              3.85.2
@payloadcms/db-postgres       3.85.2
@payloadcms/richtext-lexical  3.85.2
next                          16.3.4
react / react-dom             19.2.6
react-select                  5.9.0  (transitive, via @payloadcms/ui)
node                          26.0.0
axe-core                      4.13.0
database                      PostgreSQL

Versions are pinned and the lockfile is committed, so the reproduction does not drift with @latest.