Replaces the line-items-only editor with a full ManagerEditPoForm that
covers every field: title, vessel, account, vendor, project code, delivery
date, PI/Quotation No+Date, Requisition No+Date, place of delivery, all
structured T&C fields, and line items (with GST rate).
Edit toggle is amber-styled to distinguish manager changes from submitter
input. On save, a complete snapshot of original values is written to the
audit trail (MANAGER_LINE_EDIT action with metadata.original).
managerEditPo server action: validates manager permission, checks
status == MGR_REVIEW, recalculates totalAmount as grand total including
GST, and persists all updated fields.
Approval detail page now fetches vessels/accounts/vendors to populate the
edit form dropdowns.
Hardik
2ca1861226