docs: backfill changelog and maintainer docs for Sep site IA

CHANGELOG.adoc

@@ -1,5 +1,17 @@
 = Changelog
 
+== 2026-09-19 -- Assets routes in crawl list
+
+* Index `/assets` and `/assets/standards` in prerender, SPA fallback, and sitemap generation.
+
+== 2026-09-18 -- Blog channel and header navigation
+
+* Separate Blog from News; new header dropdowns (Assets, Updates, Help, Links) and Assets hub routes.
+
+== 2026-09-17 -- Skills browser and docs IA
+
+* Platforms Antora placement, Help contact email, favicon refresh, and `/skills` harness-inventory UX.
+
 == 2026-09-10 -- Public crawlability
 
 * Publish `/robots.txt` and a build-generated `/sitemap.xml` from the shared prerender route list.

README.adoc

@@ -87,7 +87,7 @@ Site copies live in `public/brand/`. Canonical org-wide assets (including `logo.
 
 * **Probes:** link:https://devcentr.org/status[/status] (`/health` redirects here) — client-side checks of public endpoints
 * **Hosted uptime:** link:https://status.devcentr.org[status.devcentr.org] (Better Stack) — linked from the probe page
-* Community surfaces (Help, Status, Slack, …) live under the header **Community** menu
+* Header **Help** menu: Help desk, Status, GitHub Discussions. **Links** menu: GitHub org and Slack.
 
 === Skills
 
@@ -124,7 +124,8 @@ pnpm dev
 == Project Structure
 
 * `src/` — Source code (scaffolded)
-* `content/news/` — AsciiDoc news / blog posts
+* `content/news/` — Outward news posts (AsciiDoc)
+* `content/blog/` — Inward blog essays (AsciiDoc)
 * `public/` — Static assets (includes generated feeds under `public/news/` and `public/blog/`)
 * `src/lib/news-posts.generated.json` / `changelog-entries.generated.json` — build outputs from `pnpm news:build`
 * `app.config.ts` — SolidStart/Vinxi configuration

docs/modules/devcentr-org/pages/changelog-details/2026-09-17 - skills-browser-and-docs-ia.adoc

@@ -0,0 +1,30 @@
+= 2026-09-17 — Skills browser, brand mark, and Antora placement
+:navtitle: 2026-09-17 Skills & docs IA
+:page-audience: DevCentr site maintainers
+:page-usage-context: Maintaining `/skills` and published Antora pages
+:page-orig-author: Auto on behalf of Ryan Johnson
+:page-last-author: Auto on behalf of Ryan Johnson
+
+== Antora module
+
+This repository's component moved under the shared `platforms` Antora component (`docs/antora.yml`), published at link:https://docs.devcentr.org/platforms/devcentr-org/[docs.devcentr.org/platforms/devcentr-org/].
+Cross-module xrefs were repaired for the online playbook.
+
+== Help contact
+
+`support@devcentr.org` appears on `/help` and in the site footer as the interim assisted-support address.
+
+== Brand favicon
+
+The concentric two-tone favicon mark uses a transparent background (no dark tile) so small sizes stay legible on light and dark browser chrome.
+
+== Skills catalog UX
+
+`/skills` is framed as a *harness inventory*, not a skill storefront:
+
+* Category tabs switch client-side without a full page reload; the selected category syncs to `?cat=` in the URL.
+* Copy actions emit paste-into-agent prompts (including a harness-wide preinstall block), not bare skill names.
+* On-page copy distinguishes one-off skill use from installing `dev-centr/agent-rules` as a cohesive harness unit.
+* Layout fixes: stable stage height, Bootstrap tab label, full-width option cage, and favicon hub/satellite radius parity in the solar diagram.
+
+See xref:explanation/bootstrap-templates.adoc[Agent skills] for data flow and SPA fallback.

docs/modules/devcentr-org/pages/changelog-details/2026-09-18 - blog-channel-and-header-nav.adoc

@@ -0,0 +1,37 @@
+= 2026-09-18 — Blog channel and header navigation
+:navtitle: 2026-09-18 Blog & nav IA
+:page-audience: DevCentr site maintainers
+:page-usage-context: Authoring updates and adjusting header menus
+:page-orig-author: Auto on behalf of Ryan Johnson
+:page-last-author: Auto on behalf of Ryan Johnson
+
+== News and Blog split
+
+`/blog` is a real channel, not an alias of `/news`:
+
+* Authored AsciiDoc lives in `content/blog/` (essays, investigations, inward craft).
+* `scripts/build-news.mjs` writes `src/lib/blog-posts.generated.json` and syndication feeds under `public/blog/`.
+* Routes live under `src/routes/blog/`; prerender and SPA fallback include `/blog` and each post slug.
+
+News (`content/news/`) remains the outward shared record (releases, partnerships, openings).
+See xref:explanation/news-and-changelog.adoc[News & changelog pipeline].
+
+== Header information architecture
+
+The former single **Community** menu became structured dropdowns:
+
+* **Assets** — tree: Assets hub (`/assets`), Apps (`/apps`), Skills (`/skills`), Standards (`/assets/standards`). Legacy `/apps/standards` redirects to `/assets/standards`.
+* **Updates** — News, Blog, Changelog, and external Docs (`docs.devcentr.org`).
+* **Help** — Help desk (`/help`), Status probes (`/status`), GitHub Discussions.
+* **Links** — GitHub org and Slack (`SLACK_INVITE_URL` in `src/lib/site-links.ts`).
+
+Implementation: `src/components/site-header.tsx`, `help-nav.tsx`, `links-nav.tsx`, `nav-dropdown.tsx`.
+
+== Blog launch content
+
+* New essay: what a good install actually is (installation norms orientation).
+* Editorial title pass on existing blog posts; PlayTime diagram CI test targets the blog article path.
+
+== CI note
+
+Stack Advisor catalog markup and the D language toolchain package name (`dax` replacing deprecated `dax-sh`) were fixed so production builds stay green.

docs/modules/devcentr-org/pages/changelog.adoc

@@ -2,10 +2,28 @@
 
 Timeline of notable documentation and site changes in the devcentr.org repository.
 
+== 2026-09-19 — Assets routes in crawl list
+
+* Add `/assets` and `/assets/standards` to `scripts/site-routes.mjs` so prerender, SPA fallback, and `sitemap.xml` cover the Assets hub and Standards catalogue.
+
+== 2026-09-18 — Blog channel and header navigation
+
+* Split News and Blog into separate channels (`content/blog/`, dedicated feeds and routes).
+* Replace the Community header menu with Assets, Updates, Help, and Links dropdowns; introduce `/assets` gate and `/assets/standards`.
+* Ship installation-norms blog essay; editorial title pass on blog posts.
+* See xref:changelog-details/2026-09-18 - blog-channel-and-header-nav.adoc[Detailed changelog].
+
+== 2026-09-17 — Skills browser, brand, and Antora placement
+
+* Move this component under the shared `platforms` Antora module; repair online xrefs.
+* Surface `support@devcentr.org` on Help and in the footer.
+* Refresh favicon mark; overhaul `/skills` UX (harness framing, agent prompts, client-side category tabs).
+* See xref:changelog-details/2026-09-17 - skills-browser-and-docs-ia.adoc[Detailed changelog].
+
 == 2026-09-10 — Public crawlability
 
 * Publish `/robots.txt` and generate `/sitemap.xml` from the shared prerender route list in postbuild (`spa-fallback`).
-* Sitemap omits `/health`, `/status`, and `/blog` aliases of `/news`.
+* Sitemap omits probe routes `/health` and `/status` only.
 
 == 2026-09-08 — Themed PlayTime news diagrams
 

docs/modules/devcentr-org/pages/explanation/bootstrap-templates.adoc

@@ -4,6 +4,8 @@
 
 `/skills` is the public catalog of org Cursor skills. Categories are All, Bootstrap skills, Writing, Docs, Publishing, plus Review and Studio placeholders. `/templates` redirects to `/skills?cat=bootstrap`.
 
+The page is a **harness inventory**, not a storefront: copy actions emit paste-into-agent prompts (including a harness-wide preinstall block), and on-page copy explains installing `dev-centr/agent-rules` as one cohesive unit versus one-off skill picks. Category tabs update `?cat=` in the URL without a full page reload.
+
 Bootstrap skills reuse the list-and-detail picker for named SDL profiles in `dev-centr/agent-rules` (`skills/bootstrap-org/profiles/`).
 JSON is compiled at site build time. The SDL files in agent-rules stay the source of truth; the site does not hand-maintain a duplicate table.
 

docs/modules/devcentr-org/pages/explanation/news-and-changelog.adoc

@@ -1,13 +1,14 @@
 = News and changelog pipeline
 :navtitle: News & changelog
-:description: How authored news posts and mirrored Antora changelogs are built for devcentr.org.
+:description: How authored news and blog posts plus mirrored Antora changelogs are built for devcentr.org.
 
-devcentr.org separates **narrative news** from **shipping notes**:
+devcentr.org separates **channels** from **shipping notes**:
 
-* **News** (`/news`) — outward-facing essays and announcements authored in this repo.
+* **News** (`/news`) — outward-facing essays and announcements in `content/news/`.
+* **Blog** (`/blog`) — inward craft, investigations, and orientations in `content/blog/`.
 * **Changelog** (`/changelog`) — day-to-day bullets mirrored from Antora changelogs in sibling repos.
 
-Do not put changelog bullets in news posts, and do not hand-edit the generated JSON catalogs.
+Do not put changelog bullets in news or blog posts, and do not hand-edit the generated JSON catalogs.
 
 == News (authored)
 
@@ -22,12 +23,12 @@ Each post should set:
 = Post title
 :description: One-line summary for feeds and meta
 :revdate: 2026-08-10
-:keywords: news, blog, optional-topic
+:keywords: news, optional-topic
 ----
 
 === Authoring options
 
-* **Pages CMS** — GitHub-connected editor; config in `.pages.yml` at the repo root.
+* **Pages CMS** — GitHub-connected editor; config in `.pages.yml` at the repo root (`news` collection).
 * **Git / PR** — create or edit files under `content/news/`, run `pnpm news:build`, open a PR.
 
 Voice and checklist: see `content/news/README.adoc` in the repository (conversational, scene-driven; changelog bullets belong elsewhere).
@@ -39,7 +40,26 @@ Voice and checklist: see `content/news/README.adoc` in the repository (conversat
 * `src/lib/news-posts.generated.json` — post metadata and rendered HTML for Solid routes
 * `public/news/rss.xml` and `public/news/atom.xml` — syndication feeds
 
-Routes: `src/routes/news/` (and `/blog` alias).
+Routes: `src/routes/news/`.
+
+== Blog (authored)
+
+=== Source
+
+AsciiDoc files in `content/blog/YYYY-MM-DD-slug.adoc` with the same front-matter fields as news (omit `:keywords:` values that imply the wrong channel).
+
+=== Authoring options
+
+* **Pages CMS** — `blog` collection in `.pages.yml`.
+* **Git / PR** — edit `content/blog/`, run `pnpm news:build`.
+
+=== Build output
+
+* `src/lib/blog-posts.generated.json`
+* `public/blog/rss.xml` and `public/blog/atom.xml`
+* Routes under `src/routes/blog/`
+
+Blog and news posts are deduplicated by slug across channels at build time (a slug cannot appear in both trees).
 
 == Changelog (mirrored)
 
@@ -77,5 +97,5 @@ Rebuild (or push to `main` and let CI regenerate).
 == Troubleshooting
 
 * **Empty `/changelog` locally** — clone `dev-centr/devcentr`, `general-knowledge`, and `docs` as siblings, then `pnpm news:build`.
-* **News post missing** — confirm filename ends in `.adoc`, is not `README.adoc`, and has `:revdate:`.
-* **Feeds stale** — run `pnpm news:build`; feeds are regenerated from the news JSON, not hand-edited.
+* **News or blog post missing** — confirm filename ends in `.adoc`, is not `README.adoc`, has `:revdate:`, and the slug is not duplicated in the other channel.
+* **Feeds stale** — run `pnpm news:build`; feeds are regenerated from the JSON catalogs, not hand-edited.

docs/modules/devcentr-org/pages/explanation/site-architecture.adoc

@@ -21,20 +21,26 @@ devcentr.org is a **static** SolidStart (Vinxi) application.
 | `/`
 | Landing — hero, ecosystem copy, toolchain diagram, apps teaser
 
-| `/news`, `/blog`
-| News index and posts (`/blog` is an SEO alias)
+| `/news`
+| Outward news index and posts (`content/news/`)
+
+| `/blog`
+| Inward blog index and posts (`content/blog/` — not a News alias)
 
 | `/changelog`
 | Changelog mirror from Antora sibling repos
 
+| `/assets`, `/assets/standards`
+| Assets hub; Apps vs Standards entry points (`/apps/standards` redirects to `/assets/standards`)
+
 | `/help`, `/support`
 | Help hub (`/support` redirects to `/help#support`)
 
 | `/status`, `/health`
 | Client-side endpoint probes (`/health` redirects to `/status`)
 
 | `/apps`, `/apps/products`, `/apps/services`, `/apps/standards`
-| Apps catalogue (data in `src/lib/apps-catalog.ts`)
+| Apps catalogue (data in `src/lib/apps-catalog.ts`; `/apps/standards` redirects to `/assets/standards`)
 
 | `/ideas/:slug`
 | Idea pages for catalogue entries with `ideaSlug`
@@ -51,6 +57,17 @@ devcentr.org is a **static** SolidStart (Vinxi) application.
 
 Catalogue and nested article pages (`PageTrail`) show the access path as `Section / Child / Current`. Topic tags stay *below* that trail, in the eyebrow style. Outbound links (repo, docs) sit after the intro, not in the trail.
 
+== Header navigation
+
+Top-level menus in `src/components/site-header.tsx`:
+
+* **Assets** — `/assets` hub, `/apps`, `/skills`, `/assets/standards` (tree layout in the dropdown).
+* **Updates** — `/news`, `/blog`, `/changelog`, plus external Docs.
+* **Help** — `/help`, `/status`, GitHub Discussions (`help-nav.tsx`).
+* **Links** — GitHub org and Slack (`links-nav.tsx`, `SLACK_INVITE_URL`).
+
+The legacy **Community** label was removed; `community-nav.tsx` re-exports `HelpNav` for compatibility.
+
 == Build pipeline
 
 `pnpm run build` runs, in order:
@@ -78,6 +95,19 @@ Custom domain `devcentr.org` is configured in the repository's Pages settings.
 * `src/routes/` — page components
 * `src/components/` — shared UI (header, footer, diagrams, toolchain browser widget, agent skills catalog)
 * `src/lib/` — catalog data, changelog loader, theme reveal, site links
-* `content/news/` — authored news (see xref:explanation/news-and-changelog.adoc[News & changelog pipeline])
+* `content/news/` — outward news (`content/blog/` for the blog channel; see xref:explanation/news-and-changelog.adoc[News & changelog pipeline])
 * `public/brand/` — SVG logo marks (canonical org assets live in `.github` profile repos)
 * `scripts/` — news/changelog build, advisor and bootstrap-profile sync, SPA fallback, logo rasterize
+
+== Public crawlability
+
+`scripts/site-routes.mjs` is the single source of indexable paths.
+`getPrerenderRoutes()` feeds:
+
+* Vinxi prerender configuration (static HTML shells where applicable)
+* `scripts/spa-fallback.mjs` — copies the enhanced SPA `index.html` into each route directory under `.output/public`
+* `scripts/write-crawlability.mjs` — writes `sitemap.xml` and `robots.txt` (called from postbuild)
+
+The sitemap excludes operational probe routes `/health` and `/status` only.
+News, blog, changelog, assets, and app routes are included when listed in `site-routes.mjs` or derived from generated post JSON / idea slugs.
+`injectHtmlFallback` adds title, description, and a noscript block to the app shell for crawlers without JavaScript.

docs/modules/devcentr-org/pages/help-and-support-plans.adoc

@@ -18,9 +18,9 @@ Do not make docs the top-level support page. Docs are one choice on `/help`.
 * `/help` landing with docs (live) and contact-support (coming soon).
 * Interim contact: `support@devcentr.org`.
 * Public triage still via GitHub Issues and Discussions.
-* Community menu (header): Help, Status, Better Stack uptime, Slack, Discussions.
-* Live probe page at `/status`; hosted incidents/uptime at `https://status.devcentr.org` (Better Stack).
-* Slack: public invite in `src/lib/site-links.ts` (`SLACK_INVITE_URL`).
+* Header **Help** menu: Help desk (`/help`), Status probes (`/status`), GitHub Discussions.
+* Header **Links** menu: GitHub org and Slack (`SLACK_INVITE_URL`).
+* Hosted uptime and incidents: `https://status.devcentr.org` (Better Stack), linked from `/status`.
 
 == Near-term product goals
 
@@ -58,7 +58,7 @@ When volume or paid plans justify an operator queue:
 
 == Related surfaces
 
-* Site: `src/routes/help.tsx`, `src/routes/support.tsx`, `src/components/community-nav.tsx`
+* Site: `src/routes/help.tsx`, `src/routes/support.tsx`, `src/components/help-nav.tsx`, `src/components/links-nav.tsx`, `src/components/site-header.tsx`
 * Links: `src/lib/site-links.ts`
 * Docs hub: https://docs.devcentr.org
 * Status (probes): `/status`

docs/modules/devcentr-org/pages/how-to/local-development.adoc

@@ -17,7 +17,7 @@ pnpm install
 pnpm dev
 ----
 
-`predev` runs `scripts/build-news.mjs`, which needs news posts under `content/news/` (always present in the repo).
+`predev` runs `scripts/build-news.mjs`, which compiles news and blog posts under `content/news/` and `content/blog/` (always present in the repo).
 
 Open the URL printed by Vinxi (typically `http://localhost:3000`).
 
@@ -55,7 +55,7 @@ Without siblings, news still builds; changelog ingest logs `changelog skip (miss
 | Production static build to `.output/public`
 
 | `pnpm news:build`
-| Regenerate news JSON, changelog JSON, RSS, and Atom
+| Regenerate news and blog JSON, changelog JSON, RSS, and Atom
 
 | `pnpm sync-advisor`
 | Copy and compile stack-advisor SDL → `public/catalog/`
@@ -74,7 +74,7 @@ See xref:walkthrough-vscode-and-ci.adoc[VS Code & CI walkthrough] for rationale.
 
 == Troubleshooting
 
-* **Stale news or changelog** — run `pnpm news:build` after editing `content/news/` or after pulling sibling changelog files.
+* **Stale news, blog, or changelog** — run `pnpm news:build` after editing `content/news/`, `content/blog/`, or after pulling sibling changelog files.
 * **Advisor page empty** — run `pnpm sync-advisor` with `stack-advisor` checked out; verify `public/catalog/advisor.json` exists.
 * **Skills / bootstrap selector empty** — run `pnpm sync-bootstrap-profiles` with `agent-rules` checked out; verify `public/catalog/bootstrap-profiles.json` exists (gitignored, not committed).
 * **CI fails `skills/index.html`** — Vinxi does not emit a directory index for client-only routes; `scripts/spa-fallback.mjs` must copy the SPA shell into `.output/public/skills/`.

docs/modules/devcentr-org/pages/index.adoc

@@ -15,7 +15,8 @@ https://devcentr.org
 * **Marketing home** — Developer ecosystem positioning, apps catalogue, and links to the flagship DOS at link:https://devcentr.app[devcentr.app].
 * **News** (`/news`) and **Blog** (`/blog`) — News: narrative AsciiDoc from `content/news/`. Blog: essays from `content/blog/`.
 * **Changelog** (`/changelog`) — Mirror index of Antora changelogs from sibling repos (built at CI time).
-* **Community** — Help hub (`/help`), status probes (`/status`), and toolchain surfaces.
+* **Help & links** — Help hub (`/help`), status probes (`/status`), GitHub Discussions, Slack, and GitHub org links in the header menus.
+* **Assets** — Catalogue hub at `/assets` (Apps and Standards panes); Skills and Apps also appear under the Assets menu.
 * **Public tools** — Stack Advisor (`/stack-advisor`; `/toolchain-browser` and `/toolchain-advisor` redirect), agent skills (`/skills`), resting-lanczos demo (`/resting-lanczos`), and apps catalogue (`/apps`).
 
 == Documentation map