Add a SafeHtml PageRequest path for shell/partial composition and migrate examples so rendered hemplate fragments stay typed through the transport boundary instead of round-tripping through unchecked strings.
req: axum_integration/001
req: html_safety/001
req: html_safety/002
Add InteractionForm::for_handle so tests and public integration code can construct dispatched forms from generated Handle<T> values instead of raw numeric handle ids.
req: ceremony/004
req: public_api/001
Add HandlerRegistry::register_handle for generated Handle<T> values and migrate examples away from passing raw numeric handle ids at registration sites.
req: ceremony/004
req: public_api/001
slhx agent