CRUD page for satuan barang following the pelanggan feature pattern:
page, actions, form sheet, delete dialog, and a data layer with LIKE
search and pagination. Delete rejects units still referenced by barang.
Pull PER_PAGE, parsePage, and halamanHref into lib/pagination, the search
box into components/cari-master, and escapeLike into lib/utils so other
master features can reuse them. Pelanggan switches to these helpers and
its list now calls getCurrentUser() in its render chain.
Deardo Satria