Build an AI performance review writer with these features:
1. A review wizard: pick the employee, role, review period, and rating scale.
2. The manager adds rough bullet notes per competency, optional self-review text, and goal outcomes for the period.
3. AI drafts a structured review: summary paragraph, strengths, growth areas, and next-period goals, matched to company tone settings.
4. Tone and length controls (direct, supportive, formal) with a rewrite button per section.
5. A bias check that flags vague language, recency-only examples, and uncalibrated adjectives, with suggested fixes.
6. A side-by-side compare view across the manager's team so ratings stay consistent.
7. An approval flow: draft, shared with an HR reviewer, then final export to PDF.
8. A private per-manager workspace with role-based access and no cross-team visibility.
9. A prompt-driven question bank the HR team can customize for each role.