Keep artifact names out of slot selection

[yougogirldoteth]

Summary

• keep EvmArtifact slot selection fixed to its named slots
• expose artwork names to custom renderers through the explicit artifactName slot prop
• add an SSR regression test for an artifact named _
• add a minor changeset for @1001-digital/components.evm

Why

On a Vue <slot>, name selects which slot to render. Binding both name="static" and :name="resolvedName" therefore made the artwork name replace the intended slot selector instead of becoming a slot prop. An artwork named _ then selected Vue’s internal $slots._ marker, which is not a function, and crashed SSR with TypeError: slot is not a function.

The old name slot prop could never be delivered correctly because Vue consumed it as the selector. This change gives that value an unambiguous public API as artifactName, so custom renderers receive the artwork name while the component always renders animation, static, or fallback. The corrected slot API is released as a minor change rather than preserving the broken binding through a compiler-specific workaround.

Testing

• corepack pnpm --filter @1001-digital/components.evm test
• corepack pnpm exec prettier --check packages/components.evm/src/components/EvmArtifact.vue packages/components.evm/test/artifact.test.ts .changeset/calm-artifacts-render.md

Full workspace typechecking still reaches unrelated existing errors in packages/layers.base (allowImportingTsExtensions and a missing @vueuse/core declaration).