feat(workflows,medusa,utils): add medusa v2 feature flag (#5603)

* chore: add medusa v2 feature flag

* chore: cleanup more FF

* chore: cleanup workflows FF

* chore: add comments on broken specs

* chore: added check for package registration

* chore: reenable workflows FF for create order workflow

* chore: disable FF on test cli db

* chore: hide loader validation behind FF

* chore: use medusa v2 enabled

* chore: register feature flag router in use-db

* chore: change to minro

integration-tests/plugins/__tests__/pricing/get-product.ts

@@ -24,8 +24,7 @@ const adminHeaders = {
 }
 
 const env = {
-  MEDUSA_FF_ISOLATE_PRICING_DOMAIN: true,
-  MEDUSA_FF_ISOLATE_PRODUCT_DOMAIN: true,
+  MEDUSA_FF_MEDUSA_V2: true,
 }
 
 describe("Link Modules", () => {