Epic: Develop Beta of Kyma Companion

[Teneroy]

The goal of this epic is to develop Kyma Companion and deploy it to KCP stage.
To achieve that we need to do the set of tasks:

Already on the board:

• https://github.com/orgs/kyma-project/projects/61/views/1?pane=issue&itemId=87092085
• https://github.com/orgs/kyma-project/projects/61/views/1?pane=issue&itemId=86994061&issue=kyma-project%7Ckyma-companion%7C256
• https://github.com/orgs/kyma-project/projects/61/views/1?pane=issue&itemId=87004860&issue=kyma-project%7Ckyma-companion%7C258
• https://github.com/orgs/kyma-project/projects/61/views/1?pane=issue&itemId=85210583&issue=kyma-project%7Ckyma-companion%7C240
• https://github.com/orgs/kyma-project/projects/61/views/1?pane=issue&itemId=87246720

Not on the board:

• Develop response conversion node #276
• Improve conversation history management based on findings from the spike #277
• Write down documentation for Kyma Companion #278
• Spike: Investigate which information should we exclude from storing in Checkpointers and how #279
• Spike: Experiment with react-like agents #280
• Increase the number of test cases for blackbox test to 13 test cases (add 3 Kubernetes-specific problems) #281
• Increase the number of test cases for blackbox test to 16 test cases (add 3 Kyma-related test cases) #282
• Develop cleanup mechanism for conversation history #283
• Make Kyma Agent take into consideration documentation more often #284
• Make finalizer return more yamls in its responses #285
• Make finalizer less restrictive #286
• Prepare helm charts for deploying to KCP #287
• Implement Phase 1 of KCP deployment #288
• Implement Phase 2 of KCP deployment #289
• Implement Phase 3 of KCP deployment #290
• Implement Phase 5 of KCP deployment #291
• Test Companion for Error Cases #292
• Test how many parallel requests companion can handle #302