Add CtePlanViewer, CteResultViewer, and PhaseSummaryViewer to render the
structured v2 payloads (schema_version: 2) the harness now emits for
artifact-gate widgets, per contracts.md. Extract PreviewGrid from
ResultsPanel as a reusable AG Grid component shared by CteResultViewer.
ArtifactView dispatches to the new viewers on a schema_version/shape
guard, falling back to the existing legacy renderers unchanged for
older sessions and replay fixtures.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
ArtifactView's fallback (StructuredValue) turns any object/array into labelled
sections, bullet lists and paragraphs (strings as markdown). Verified against the
real F1 gate (kind:"text", {recap, chiarimenti_risolti[], ...}). MarkdownView
uses the real .thot-prose class (Tailwind Typography is not installed).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
erDiagram reads data_type/type from the candidate (top-level or signals),
falling back to the generic 'col' token Mermaid needs — real types render as
soon as schema_linking.json carries them. ArtifactView gains a defensive
{content} fallback for sql-kind artifacts, verified against real session shapes.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>