Expose practices to learner roles based on practice shell publish state and include per-practice access fields derived from linked question set readiness so clients can manage completion/access UX explicitly.
Co-authored-by: Cursor <cursoragent@cursor.com>
Introduce lms_personas table, repoint practice persona_id FKs off users, validate persona refs on LMS and exam-prep practice flows, personas.* RBAC permissions, and OpenAPI docs.
Co-authored-by: Cursor <cursoragent@cursor.com>
