Add marketplace auth0 default header (#56)

*  SBB-12009 Update XMC SDK to support Auth0 token exchange flow

---------

Co-authored-by: thb_sitecore <thb@sitecore.net>

Author: thayalan2k

.changeset/silver-garlics-give.md

@@ -0,0 +1,5 @@
+---
+'@sitecore-marketplace-sdk/xmc': major
+---
+
+Update XMC SDK to support Auth0 token exchange flow

packages/xmc/src/__tests__/experimental_xmc.test.ts

@@ -127,6 +127,7 @@ describe('experimental_XMC', () => {
         expect.objectContaining({
           headers: expect.objectContaining({
             'sc-resource': 'marketplace',
+            'sc-marketplace-auth': 'interactive/v1',
           }),
         }),
       );
@@ -145,6 +146,7 @@ describe('experimental_XMC', () => {
         expect.objectContaining({
           headers: expect.objectContaining({
             'sc-resource': 'marketplace',
+            'sc-marketplace-auth': 'interactive/v1',
             'custom-header': 'value',
           }),
         }),

packages/xmc/src/experimental_xmc.ts

@@ -14,7 +14,8 @@ export * from './experimental/client-content/types.gen';
 
 // Default headers required for API calls
 const DEFAULT_HEADERS = {
-  'sc-resource': 'marketplace',
+  'sc-resource': 'marketplace', 
+  'sc-marketplace-auth': 'interactive/v1',
 } as const;
 
 // API configurations with better typing