CXSPA-574: Customer ID Http Header for ASM emulation

[justinlee01]

Closes https://jira.tools.sap/browse/CXSPA-574 , https://jira.tools.sap/browse/CXSPA-149 , https://jira.tools.sap/browse/CXSPA-151

• Creating UserIdInterceptor, used to append a "sap-commerce-cloud-user-id" header to certain HTTP requests that provide a HttpContext. This is so that there is no ambiguity as to who (the agent or the emulated user) is fetching certain resources.
• Covering GET /costcenters and GET /product/search
• Changing some E2E utils to be more stable (ex. use in-house interceptGet rather than cy.get with an incorrect BASE_SITE)
• Changing some E2E utils to support the B2B case

[cypress[bot]]

---

Test summary

407 • 0 • 1 • 0 • 5

---

Run details

Project	spartacus
Status	Passed
Commit	d575ddd970 ℹ️
Started	Oct 11, 2022 7:41 PM
Ended	Oct 11, 2022 7:51 PM
Duration	09:48 💡
OS	Linux Ubuntu - 20.04
Browser	Electron 91

View run in Cypress Dashboard ➡️

---

Flakiness

	ssr/pages.core-e2e-spec.ts		3
1	SSR > should render homepage
2	SSR > should render PLP
3	SSR > should render PDP
	regression/variants/apparel-cart-import-export.core-e2e-spec.ts		1
1	... > should import to saved cart
	accessibility/product-configurator-tabbing.core-e2e-spec.ts		1
1	Product Configuration > Product Config Tabbing > should allow to navigate with tab key

---

This comment has been generated by cypress-bot as a result of this project's GitHub integration settings. You can manage this integration in this project's settings in the Cypress Dashboard

[justinlee01]

@armanozak @plabadie As the feature requires a corresponding change to Commerce Cloud, I have hidden it behind a feature flag, implemented in "UserIdHttpHeaderInterceptor". I have also skipped the written e2e tests for the same reason. Let me know your thoughts.

[justinlee01]

As a note, I have created a ticket for updating the backend: https://jira.tools.sap/browse/CXSPA-1355 I myself am not sure how this is done - through updating spartacussampledata or other.