App Platform Docs

Use these docs when adding or refactoring an app module.

Need	Read
Required files, manifest fields, entry component, hooks, resources, UI rules	`module-contract.md`
Resource files: icons, colors, strings, dimensions	`resources.md`
Status/nav bars, keyboard resize, pointer events, URL-driven UI state	`ui-shell.md`
Constants, defaults, world data, runtime overlay	`data-layering.md`
Navigation declarations and graph generation	`../navigation/declaration.md`
App runtime state, world data, snapshots	`../state/model.md`
Cross-app calls from or into the app	`../os/intent-system.md` and `../os/cross-app-launch.md`

This directory is app-author-facing. OS internals live under ../os/.