[BEAM-13564] [Playground] Add getting of preparation output for the sent example

• Type: Improvement
• Status: Triage Needed
• Priority: P3
• Resolution: Done
• Component/s: beam-playground
• Labels: beam-playground-backend beam-playground-frontend beam-playground-sprint-7
• Assignee: Unassigned
• Reporter: Aydar Zaynutdinov
• Created: 28/Dec/21 15:27
• Updated: 1 week ago 14:19
• Resolved: 24/Jan/22 09:05

Description

As a Beam Playground user, I want to see why the preparation of the code I've sent failed.

Acceptance criteria:

• If preparation is failed, the reason for the failure is displayed as a notification
• If preparation is failed, the reason for the failure is displayed in the Output tab

Sub-Tasks

• [Playground] Add GetPreparationOutput API method to .proto file: Resolved
• [Playground] Add logic of sending preparation's output on the backend side: Resolved
• [Playground] Add using of GetPreparationOutput in case of PreparationError: Resolved