feat: add invoice-config-items management functionality

db/queries/invoice_config_item.sql

@@ -0,0 +1,33 @@
+-- name: GetInvoiceConfigItemByID :one
+SELECT * FROM invoice_config_items
+WHERE id = sqlc.arg(id);
+
+-- name: ListInvoiceConfigItems :many
+SELECT * FROM invoice_config_items;
+
+-- name: CreateInvoiceConfigItem :one
+INSERT INTO invoice_config_items (invoice_config_id,component_id,required_quantity, allow_alternative,priority_order, note, metadata)
+VALUES (
+    sqlc.arg(invoice_config_id),
+    sqlc.arg(component_id),
+    sqlc.arg(required_quantity),
+    sqlc.arg(allow_alternative),
+    sqlc.arg(priority_order),
+    sqlc.arg(note),
+    sqlc.arg(metadata)
+)
+RETURNING *;
+
+-- name: UpdateInvoiceConfigItem :one
+UPDATE invoice_config_items
+SET required_quantity = coalesce(sqlc.arg(required_quantity), required_quantity),
+    allow_alternative = coalesce(sqlc.arg(allow_alternative), allow_alternative),
+    priority_order = coalesce(sqlc.arg(priority_order), priority_order),
+    note = coalesce(sqlc.arg(note), note),
+    metadata = coalesce(sqlc.arg(metadata), metadata)
+WHERE id = sqlc.arg(id)
+RETURNING *;
+
+-- name: DeleteInvoiceConfigItem :execrows
+DELETE FROM invoice_config_items
+WHERE id = sqlc.arg(id);