Goods receipts and warehouse receipts now capture party vs warehouse separately; purchase returns link to invoices and reduce AP.
Co-authored-by: Cursor <cursoragent@cursor.com>
Wire nested nav pages for phases 5.1-5.11 to real list/create endpoints, fix COA import connectivity via same-origin proxy, and add operational migration.
Co-authored-by: Cursor <cursoragent@cursor.com>