AppHeader is rendered at the top of the terminal by RenderLoop, similar to
StatusBar at the bottom. Views declare header content via .appHeader { }
ViewBuilder modifier. Supports standard (thin divider) and block (half-block
with appHeaderBackground) appearance. Hidden when no content is set.
Diff cache invalidates on header height changes to prevent ghosting.
Update IDETemplateMacros.plist and replace headers in 136 Swift files with
new format: 🖥️ TUIKit — Terminal UI Kit for Swift. Remove sdsd.swift template draft.
Implement SwiftUI-style structural identity so @State values survive
full view-tree reconstruction on every render pass. State is keyed by
ViewIdentity (path-based) and property index in a central StateStorage.
- Add ViewIdentity (path-based structural identity for views)
- Add StateStorage with GC and branch invalidation
- Refactor @State to self-hydrate from StateStorage during init
- Set root hydration context in RenderLoop before app.body evaluation
- Extend RenderContext with identity propagation helpers
- Add ConditionalView branch invalidation on switch
- Remove scene cache from RenderLoop (app.body evaluated fresh per frame)
- Enhance Example App pages with @State (ButtonsPage, OverlaysPage, ContainersPage)
- Update DocC articles (StateManagement, RenderCycle)
- Add 12 tests for state storage identity
phranck