Add ensure-copy-seq API and miniprogram clipboard prefix so each plan
gets a tenant-scoped fixed serial on first copy; cover allocation with
unit tests and refresh the backend graph.
Co-authored-by: Cursor <cursoragent@cursor.com>
Resolve plans by linked driver/escort personnel and reuse public
driver page/feedback helpers for login-state miniprogram APIs.
Co-authored-by: Cursor <cursoragent@cursor.com>