Tiny nav UX fix + comprehensive close-out docs so the next session resumes without retracing today's conversation. Reorder Pages sub-items so All Pages comes first (the listing surface a user opens before drilling into a specific page editor like Landing). Capture the Dashboard architectural direction (Admin Panel + Workspace split, RBAC/CRM/Analytics harvest from superspace) at docs/architecture/dashboard-vision.md, and a wave-by-wave log at docs/sessions/2026-05-19-session.md. Memory entries written so /rr in the next session auto-loads the vision + open items.

Closes the AV-deferred propagation: every website template now has the Pages parent + collapsible sub-items (Landing / All pages / blog / portfolio / services where applicable). ParentNavItem rewired to the canonical shadcn NavMain idiom (group/collapsible + group-data-[state=open]/collapsible:rotate-90) — same pattern shadcn ships in its docs. FeatureBar gets a new ExternalLink button: when the active docs tab is a preview surface, the button pops the iframed content out into a real browser tab at native size.

Applies the AV nested-nav pattern to notion-page-clone-os and rewires the public homepage to compose existing rr slices instead of a bespoke React tree. Admin sidebar now groups Landing / Snippets / All-pages under a single "Pages" parent (Collapsible + SidebarMenuSub). Public homepage reads admin-editable LandingSection rows from the template store and renders each via the canonical HeroBlock / FeatureGridSection / CtaBand slices, plus a custom snippets gallery section for the notion-blocks demo. Store schema bumped to v2-landing — landing-sections now first-class state managed via LANDING_UPSERT / LANDING_DELETE alongside pages + snippets.

Admin nav was a flat list per template — every content surface (landing, blog, pricing, features, changelog) sat as a sibling top-level menu item. With more entities being added the sidebar started feeling crowded. AV adds optional `children` to AdminNavItem and renders nested entries via shadcn's `Collapsible` + `SidebarMenuSub` + `SidebarMenuSubButton`. POC on saas-marketing-os groups all page-driving CRUDs (landing, all pages, blog, pricing, features, changelog) under a single "Pages" parent. Top-level keeps Dashboard / Pages / Customers / Subscriptions / Leads. Other 6 templates queued for AW. Dynamic per-page section composition (using existing hero / feature-grid / pricing-page / blog-section / changelog-feed / faq-section / portfolio-section / cta / services / testimonials-grid slices) deferred to a separate AW-B sub-wave.

First end-to-end website template built on the notion-blocks bundle. Notion Page Clone OS = block-based notes-app starter with admin CRUD + public landing. Snippets entity (kind: equation/code/text/grid) renders live on the public landing via the four bundled primitives (EquationBlock / CodeBlock / NotifyMePopover / SelectableCell). Pure-localStorage state, zero convex required — drop-in for anyone shipping a writing surface or doc site. Wires the same _shared/{pages,landing,crud,ui} primitives the other 7 templates use so consistency holds across the OS family.

User principle: rr is an extension of shadcn, not a replacement. The website-template ADMIN sidebars already used shadcn Sidebar primitives (Sidebar / SidebarMenuButton / SidebarMenuSub / SidebarMenuBadge wrapped in SidebarProvider) — but the rr docs CATALOG sidebar (the left nav on /slices /layouts /templates /changelog etc.) was still a hand-rolled <nav> with custom buttons + chevrons. AT refactors it to shadcn primitives so collapse tooltips, mobile drawer, and persistent state inherit from the same canon as the admin shells. We extend shadcn — we don't fight it.

Four tiny notion-lifted primitives (equation, code-block, notifications, database-cell-selection) collapsed into one catalog entry: notion-blocks. Each was ~5 files / one component — splitting them four ways cluttered the catalog without giving consumers narrower install ergonomics. notion-blocks is a peer-bundle: re-exports the four slices' public API behind one import path. Per-block narrow imports still work (the peer slices stay registered + lifted). Updated equation + code-block index.ts to also re-export their Props types for ergonomic typing.

After AP killed the client-side reset churn, server-side nav still felt heavy because cacheComponents: true treats async server components as dynamic by default — every navigation re-ran readSliceFiles on the filesystem. AR adds Next 16 `use cache` directives to the file readers and per-route loading.tsx skeletons that stream instantly on click. /slices/[slug] now reports as Partial Prerender with 15m revalidate; nav between detail pages feels app-router-fast.

Four pure-UI primitives lifted from notion-page-clone using a new hash-based, idempotent sync pipeline. The pipeline auto-derives import rewrites from both repos' tsconfigs, follows transitive shared-dep graphs, cross-checks npm packages against rr's package.json, and ships a registry (rr-sync.json) so subsequent updates to the same slice in nosion can re-propagate with one command. Each lifted slice has an interactive preview at /preview/slices/<slug>.