DL-272

The first-run product tour (RIG-2797) is built natively in SolidJS v2 as a store-gated App-root overlay (a third sibling of the shortcuts overlay + palette) whose steps anchor to real chrome via data-tour attributes and navigate the real router through the store’s closures; while open it shows tour-only demo agents and content (demo: ids, badged, read-time only, never sent to the server). PostHog-rendered UI (Product Tours/surveys/banners or any posthog-js widget) NEVER ships in-app — PostHog is measurement/data-only (Matt’s RIG-2793 ruling, restated by #656 T6)

Status: Active (Matt, 2026-10-04)

Record: ../../ui/compass-first-run-tour/design.md#a1–host-shape-an-app-root-overlay-layer-store-gated