Builds a Custom Elements Manifest by statically analysing vanilla custom
elements (classes extending HTMLElement registered with
customElements.define). Attributes come from observedAttributes,
properties/methods from public class members, events from new CustomEvent(...),
and slots / CSS parts / CSS custom properties from class jsdoc tags
(@slot, @csspart, @cssprop).
Builds a Custom Elements Manifest by statically analysing vanilla custom elements (classes extending
HTMLElementregistered withcustomElements.define). Attributes come fromobservedAttributes, properties/methods from public class members, events fromnew CustomEvent(...), and slots / CSS parts / CSS custom properties from class jsdoc tags (@slot,@csspart,@cssprop).