Adds a copy-paste server block template for onboarding a new marketplace
domain, and a Sprint 16 backend handoff doc covering the still-missing
draft/publish persistence endpoints, server-side validation expectations,
and the slug/route inconsistency in static-page data.
11-task plan extending the existing /builder editor: route-driven
tabs, generic Languages/Navigation tabs, a dependency-free rich HTML
editor, client-side draft/publish + validation, and a dirty-state
guard. Notes the repo has no test runner configured, so tasks use
manual verification instead of automated specs.
Records the multi-tenant marketplace platform architecture as ADR-0001
(bootstrap-driven, config-only frontend) with a source-backed fact pack,
and writes the approved Sprint 16 design for extending the existing
project editor with Languages/Navigation tabs, an HTML editor, and a
client-side draft/publish flow.
Unify product details modules behind config-driven contracts so teams can
extend UX without changing runtime architecture or bootstrap flow.
Keep backward compatibility with existing product payloads by treating new
media/specification/variant/related structures as optional extensions.
Improve conversion and content discoverability with reusable actions,
typed media rendering, grouped specifications, dynamic variants, and
multi-collection related products.
