Suppliers
Suppliers — 12 endpoints.
List suppliers with optional filters and pagination
GET /suppliers
Create a new supplier
POST /suppliers
Get supplier by ID
GET /suppliers/id
Update an existing supplier
PATCH /suppliers/id
Soft delete a supplier
DELETE /suppliers/id
Toggle favorite status for a supplier
PATCH /suppliers/id/favorite
Get expenses for a supplier (paginated)
GET /suppliers/id/expenses
List the products this supplier can source (with per-supplier terms)
GET /suppliers/id/products
Link a product to this supplier (per-supplier SKU / cost / lead-time / preferred)
POST /suppliers/id/products
Update a supplier↔product link
PATCH /suppliers/id/products/linkId
Remove a supplier↔product link
DELETE /suppliers/id/products/linkId
Product-side lookup: all suppliers that can source a product (preferred first)
GET /suppliers/products/productId/suppliers