docs(wiki): add IX hosting server system article + radio site infra

- New wiki/systems/ix-server.md: IX web host (172.16.3.10) facts, the
  ACG hosted sites table, and a full record of radio.azcomputerguru.com
  (Astro static + React 19 islands; source in projects/radio-show/website/;
  build npm run build -> dist -> rsync to cPanel doc root).
- index.md: list the new IX systems article.
- radio-show.md: fix the stale "ix-server.md may not exist" backlink.
- memory reference_radio_website.md: add stack detail (React islands,
  wavesurfer/fuse, node>=22) + pointer to the new wiki article.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.claude/memory/reference_radio_website.md

@@ -7,12 +7,14 @@ type: reference
 ## Radio Show Website
 
 - **URL:** https://radio.azcomputerguru.com
-- **Platform:** Astro 6.0.4 (static site generator)
+- **Platform:** Astro 6.0.4 (`output: 'static'`) with **React 19 islands** (`@astrojs/react`), MDX, sitemap, RSS; `wavesurfer.js` (episode audio) + `fuse.js` (client search). Node >= 22.12.0.
 - **Server:** IX server (172.16.3.10), cPanel account `azcomputerguru`
 - **Document Root:** `/home/azcomputerguru/public_html/radio`
-- **Source Code:** `projects/radio-show/website/` in ClaudeTools repo
+- **Source Code:** `projects/radio-show/website/` in ClaudeTools repo (server holds only built `dist/`)
+- **Content:** Markdown/MDX collections at `src/content/episodes/` and `src/content/blog/`
 - **Build:** `cd projects/radio-show/website && npm run build` produces `dist/` folder
 - **Deploy:** rsync/SCP `dist/` contents to document root on IX server
+- **Full infra record:** `wiki/systems/ix-server.md`. human-flow can AST-scan the `.tsx` islands under `src/components`, not the `.astro` pages.
 
 ### Community Link
 - The community page (`/community`) links to:

wiki/index.md

@@ -70,6 +70,7 @@ Run `/wiki-lint` to check for stale entries and broken backlinks.
 | [Jupiter](systems/jupiter.md) | 172.16.3.20 — Unraid primary NAS; virsh host for all VMs; Docker: NPM, Gitea, Seafile; iDRAC at 172.16.1.73 | 2026-05-24 |
 | [Pluto (Claude-Builder)](systems/pluto.md) | 172.16.3.36 — Windows Server 2019 virsh VM on Jupiter; exclusive Windows MSI + cargo build server for GuruRMM | 2026-05-24 |
 | [Uranus](systems/uranus.md) | 172.16.3.21 — Unraid secondary (Dell R730xd); OwnCloud archive storage only; formerly Saturn's IP (reused Apr 2026); RAM too low for VMs | 2026-05-24 |
+| [IX Web Hosting Server](systems/ix-server.md) | 172.16.3.10 / 72.194.62.5 — cPanel/WHM (CloudLinux 9.7); hosts ACG static sites incl. **radio.azcomputerguru.com** (Astro, source in `projects/radio-show/website/`), public site, Flarum community, Matomo analytics + ~87 client WordPress; behind Cloudflare tunnel `acg-origin` | 2026-06-05 |
 
 ## Patterns
 

wiki/projects/radio-show.md

@@ -199,7 +199,7 @@ IX server access: paramiko with `look_for_keys=False, allow_agent=False`. Tailsc
 ## Backlinks
 
 - `wiki/systems/jupiter.md` [unverified — may not exist yet] — Jupiter server spec
-- `wiki/systems/ix-server.md` [unverified — may not exist yet] — IX hosting server spec
+- `wiki/systems/ix-server.md` — IX hosting server + the radio website (Astro) build/deploy record
 - `wiki/projects/gururmm.md` — related ACG project
 - `projects/radio-show/audio-processor/README.md` — full pipeline spec and configuration reference
 - `projects/radio-show/post-show-workflow.md` — full post-show content workflow spec

wiki/systems/ix-server.md

@@ -0,0 +1,115 @@
+---
+type: system
+name: ix-server
+display_name: IX Web Hosting Server
+last_compiled: 2026-06-05
+compiled_by: GURU-5070/claude-main
+sources:
+  - .claude/memory/reference_radio_website.md
+  - .claude/memory/reference_resource_map.md
+  - wiki/clients/internal-infrastructure.md
+  - projects/radio-show/website/ (source tree)
+---
+
+# IX Web Hosting Server
+
+`ix.azcomputerguru.com` — Arizona Computer Guru's cPanel/WHM shared-hosting box.
+It hosts ACG's own public-facing static sites (including **radio.azcomputerguru.com**),
+the community forum, the analytics server, and ~87 client WordPress installs.
+
+> Deep operational detail (cPanel account hygiene, WordPress hygiene, mail
+> accounts, the Cox→Cloudflare BGP workaround) lives in
+> [`wiki/clients/internal-infrastructure.md`](../clients/internal-infrastructure.md).
+> This article is the **systems-level** record and the home for the ACG static
+> sites deployed here.
+
+## Host facts
+
+| Item | Value |
+|---|---|
+| Hostname | `ix.azcomputerguru.com` |
+| Internal IP | `172.16.3.10` (Tailscale required) |
+| External IP | `72.194.62.5` |
+| Stack | CloudLinux 9.7, Apache, WHM/cPanel, per-account MySQL/MariaDB |
+| WHM | `https://ix.azcomputerguru.com:2087` — **DNS-only / grey-cloud** in Cloudflare (`:2087`/`:2083` can't traverse the tunnel) |
+| SSH | `ssh root@172.16.3.10` (internal) or `ssh root@72.194.62.5` (external) |
+| Vault | `infrastructure/ix-server.sops.yaml` |
+| Edge | Cloudflare tunnel `acg-origin` (UUID `78d3e58f-1979-4f0e-a28b-98d6b3c3d867`) on Jupiter routes the ACG hostnames to IX `:443` |
+
+[WARNING] Do NOT attempt interactive/key-based SSH from scripts to the `gurushow`
+account host path — for that account use paramiko with `look_for_keys=False,
+allow_agent=False`. Root SSH uses the vault password (`infrastructure/ix-server.sops.yaml`).
+
+## Hosted ACG sites
+
+| Hostname | Stack | cPanel account / doc root |
+|---|---|---|
+| **radio.azcomputerguru.com** | Astro static (+ React islands) | `azcomputerguru` → `/home/azcomputerguru/public_html/radio` |
+| azcomputerguru.com | Astro static (public site) | `acg` / `azcomputerguru` |
+| community.azcomputerguru.com | Flarum forum | (forum DB) |
+| analytics.azcomputerguru.com | Matomo | — |
+| (radio audio archive) | static MP3 archive | `gurushow` → `/home/gurushow/public_html/archive/Radio/` |
+| ~87 client sites | WordPress | per-client cPanel accounts |
+
+All four ACG hostnames above reach IX through the Cloudflare tunnel (all returned
+HTTP 200 via tunnel as of the 2026-04-13 cutover). `ix.azcomputerguru.com` itself
+stays grey-cloud (direct to `72.194.62.5`) so WHM/cPanel ports work.
+
+---
+
+## radio.azcomputerguru.com — "The Computer Guru Show" website
+
+The public site for the radio show. **Built by Claude; source lives in the
+ClaudeTools repo**, not on the server — the server only holds the built `dist/`.
+
+| Item | Value |
+|---|---|
+| URL | https://radio.azcomputerguru.com |
+| Source | `projects/radio-show/website/` (ClaudeTools repo) |
+| Framework | Astro `^6.0.4`, `output: 'static'` |
+| Islands / libs | `@astrojs/react` (React 19), `@astrojs/mdx`, `@astrojs/sitemap`, `@astrojs/rss`; `wavesurfer.js` (episode audio waveform), `fuse.js` (client-side search) |
+| Node | `>= 22.12.0` |
+| Content | Markdown/MDX collections at `src/content/episodes/` and `src/content/blog/` (`src/content.config.ts`) |
+| Pages | `index`, `about`, `community`, `contact`, `live`, `subscribe`, `episodes/`, `blog/`, `feed.xml` (RSS), `404` |
+| Layout | single `src/layouts/BaseLayout.astro`; components under `src/components/{global,home,episodes}/` |
+| Analytics | Matomo site ID 3 — tracker injected into built HTML before `</head>` |
+
+### Build & deploy
+
+```bash
+cd projects/radio-show/website
+npm install          # first time only (node >= 22.12.0)
+npm run build        # -> dist/
+# deploy: rsync dist/ contents to the IX doc root
+rsync -az --delete dist/ <ix>:/home/azcomputerguru/public_html/radio/
+```
+
+`astro.config.mjs` pins `site: 'https://radio.azcomputerguru.com'` (correct
+canonical URLs + sitemap + RSS). There is no server-side runtime — it is a pure
+static deploy.
+
+### Relationship to the radio-show project
+
+The website is **tier 1/3** of the post-show content workflow documented in
+[`wiki/projects/radio-show.md`](../projects/radio-show.md): each episode produces
+an episode page (`src/content/episodes/sXXeYY-slug.md`) and 1–3 deep-dive blog
+posts (`src/content/blog/<slug>.md`), generated from show-prep + debrief and
+deployed here. The audio-processing pipeline, archive DB, and FastAPI browse UI
+are separate from this static site.
+
+### human-flow note
+
+The site is Astro static but ships **React 19 islands**, so the `human-flow`
+AST scanner can analyze its `.tsx` island components (it skips `.astro`
+templates). Point it at `projects/radio-show/website/src/components` for a
+component-level Friction Index; the page-level `.astro` flows still need a
+manual/heuristic pass.
+
+---
+
+## Backlinks
+
+- [`wiki/clients/internal-infrastructure.md`](../clients/internal-infrastructure.md) — full IX operational record (cPanel/WordPress hygiene, mail, Cox/Cloudflare)
+- [`wiki/projects/radio-show.md`](../projects/radio-show.md) — the radio show project (audio pipeline + post-show workflow)
+- [`wiki/systems/jupiter.md`](jupiter.md) — runs the `cloudflared` tunnel container that fronts IX
+- Memory: `reference_radio_website.md`, `reference_ix_server_ssh.md`, `reference_resource_map.md`