Design and implement audit ETL reporting solution

Feature #74

Description:
Design and implement audit ETL reporting solution using Power BI that lets validate the data movement on all stages of transformation

Acceptance Criteria:

Other Considerations:

**Definition of Ready:**
- [ ] The story is clearly written and explains Who needs What and Why.
- [ ] Acceptance criteria is clearly specified and understood by the team.
- [ ] The team has discussed and agreed upon how much story points /effort the story will require.
- [ ] There are no external dependencies preventing work on the story.
- [ ] All necessary design elements are completed and reviewed by the team.
- [ ] The technical approach has been reviewed, and any major technical risks or uncertainties have been addressed.
- [ ] The story size as small and efficient in size and can be done within a sprint

Start by reviewing Feature #74 and clarifying who needs the audit report, which transformation stages it must cover, and the missing acceptance criteria. Done should mean that the Power BI solution validates data movement across all transformation stages, but the issue names no files, tests, or entry points.

Written by the indexing model from the issue text.