Add the Completion Docs page under Data Management: a searchable template
table, a read-only detail panel, add and edit with a live document preview,
and delete behind a confirmation that counts the open work orders still
using the template and links to them. Add, edit and delete are hidden for
users whose role lacks the matching template permission.
The preview shares the work-order completion document's page frame,
header, safety bullets and procedure heading so the two stay identical.
