docs: v0.1.6a regional forms, costumes, OCR rework, and a build and upgrade guide Add a new Releases and Upgrading page covering fresh builds from a tagged release and upgrades from a supported version (with the migrate baseline table), and update the feature and reference pages: regional shiny forms and the region API field, the data-driven costume system, the reworked IV screenshot scanner (level arc, candy-line species ID, status-aware dust), the pokemon_evolutions source and the curated shiny supplement, and the costume codegen step. Link the new page from the sidebar and home.

Hailey-Ross committed Jul 7, 2026