111: Language-Specific Fine-Tuned Model Variants

[Mosss-OS]

Description

Support switching between language-specific fine-tuned model variants for improved clinical reasoning in local languages.

Acceptance Criteria

• Model selection in settings: "Language Model" dropdown
• Initial variants: English, French, Swahili (top 3 deployment languages)
• Model manifest includes language-specific model shards
• Language model downloaded on demand (separate from primary model)
• Assessment results localised by selected model
• Performance comparison documented: English model vs. language-specific
• Model swapping without app restart