feat: Genspark-Standard upgrade, MLOps audit fixes, and XAMLÉ branding

feat(media): complete T4-T5 unique images — all T1-T5 tracks now have full image coverage

feat(media): inject imageUrls for T2-T5 (17 unique + fallback for T4-T5 remainder)

feat(sprint19-20): production-ready video integration & STT hardening

Audit Final: Fix feedback message construction & Global Hardening

feat(wolof): standardized tracks T1-T5 with glossary v4.0 and implemented adaptive multi-sector architecture

feat(curriculum): integrate visual image pack for Track 1 and cleanup button IDs

feat(curriculum): integrated new 12-day production-ready T1-FR curriculum

feat(graduation): implementation of T1->T5 flow and full track normalization

feat(ai): fully operational v1.0 criteria engine and 5-level curriculum (10 modules)

feat(pedagogy): industrialization of full 5-level curriculum (10 modules FR/WO)

feat(pedagogy): implementation of dynamic content infrastructure and evaluation criteria