Feature: Extend functionality to Pull Requests

[devAyushDubey]

Description

Currently IkarisGPT only covers generating Issue descriptions. A similar more useful application is in understanding code changes under Pull Requests. It requires for us to re-structure the GHA to capture code changes done under specific PRs and inject the same into multiple well structured prompts, then collect the understanding and present it in an attractive way for PR descriptions.

Tasks

• Design an improved project structure to support this functionality
• Implement the new project structure
• Implement identifying and capturing PR commits
• Research and implement an effective way of injecting code changes into prompts
• Design and implement a structure for making LLM API calls in a single session for the multiple prompts
• Implement presenting the generated descriptions and a summary of code changes as PR comment

Expected Outcome

IkarisGPT should be able to generate comprehensive descriptions of PRs while also providing an insightful summary of code changes and their effects.