fix(medusa): Draft order inventory management (#3040)

* reserve quantities when creating a draft order

* only adjust quantities if a location is provided on a fulfillment

* initial fix for fulfillments

* changeset

* add check for inventory service when cancelling fulfillment

* update test-request with module loaders

* remove unused variable

.changeset/itchy-ants-smoke.md

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+---
+"@medusajs/medusa": patch
+---
+
+Fix inventory adjustments