Fusion-Task-Id: FN-4486 Fusion-Task-Lineage: 7d3b40b2-883f-450c-96ec-796f8af4fa45
The merge lands Step 7 of FN-3398, adding documentation and delivery artifacts across the mobile and desktop packages with updated READMEs, mobile-specific docs, and architecture references. Fusion-Task-Id: FN-3398