Generate an Excel export of all locations under the authenticated account, stores it to S3, and returns the public download URL.

Auth: Account — authentication (route is inside the authenticated group). Requires the user's company bundle_id === 3 (ACCOUNT); a non-account user gets 403. Scope is the caller's own company tree: store ids are validated against it.

Rate limit: No rate limit.

Request

• No path/query/body params.

Response — { data. } envelope.

• data.path (string) — public S3 URL of the generated .xlsx, keyed download/excel/<Y-m>/<timestamp>-<SafeBrandName>-Locations.xlsx.

Errors: 422 on validation failure.