Thing/packages/eve-browser-lowering

@gamecult/eve-browser-lowering

Browser DOM/CSS lowering for gamecult.eve.surface.v1 documents.

This package owns the shared browser renderer contract:

• renderEveSurface(surface, host, options) lowers an Eve surface document into a DOM host.
• renderEveComponent(component, options) lowers a single component tree.
• applyEveSurfaceStyles(styles, body) maps portable Eve style tokens to CSS custom properties.
• createEveCommandIntent(commandId, props, options) creates the browser command envelope for host daemons and carries the provider-advertised commandBoundary / receiptSchema when the active surface exposes worldInteraction.

Host applications own transport and command delivery. Providers own command acceptance and receipts through their advertisements. For example, Eir resolves surfaces through Odin/CultMesh and posts commands to /eir/command; Aetheria resolves surfaces through Electron IPC. Neither host should duplicate DOM lowering or import provider internals to find a command route.

Asset references are left as-is unless the host provides assetUrlResolver. Eir uses that hook only for CultMesh/CultCache asset URIs such as cultmesh://schema/record or cultcache://schema/record; ordinary HTTPS assets and web fonts remain ordinary browser URLs.