Added new pull request review rules and instructions for automated code reviews

- Created a comprehensive set of guidelines for conducting automated code reviews across various technology stacks, including Drupal, Vue.js, and React.
- Established primary objectives for requirement fulfilment analysis, code standards compliance, security assessment, label management, and line-specific feedback.
- Included detailed processes for input data analysis, review scoring criteria, and security assessments tailored to specific frameworks.
- Implemented guidelines for Freshdesk integration to log review findings and time entries.

This enhances the code review process and ensures consistency in evaluating pull requests.

Author: ivangrynenko