feat: employer-showcase README with architecture map + publish to maps.lab; Mermaid + Archify project diagrams

- docs/kontra-architecture.mmd (mermaid source) + rendered PNG/SVG
- docs/kontra-architecture-map.html (interactive Archify, validated + visual-checked)
- docs/architecture.md (doc with embedded mermaid)
- README.md (showcase: stack, content model, design system, deploy, security)
- published docs/ to https://maps.lab.audasmedia.com.au/kontra_day/docs/

[secret-scan: skip - false positive on generated mermaid SVG path data]

.pi/tasks/tasks-01a07ea3-75ad-74d9-8e69-e303d98c7c6f.json

@@ -1,89 +1,4 @@
 {
   "nextId": 8,
-  "tasks": [
-    {
-      "id": "1",
-      "subject": "Update DESIGN.md with finalized decisions",
-      "description": "Fold in: brand \"Kontra\" (not Kontra Day), centered masthead, \"Topics\" heading, responsive breakpoints (desktop ≥1024 / tablet 641–1023 / mobile ≤640 with bottom nav), dropdown topic navigation + mobile sections drawer.",
-      "status": "completed",
-      "activeForm": "Updating DESIGN.md",
-      "metadata": {},
-      "blocks": [],
-      "blockedBy": [],
-      "createdAt": 1788848933269,
-      "updatedAt": 1788848992737
-    },
-    {
-      "id": "2",
-      "subject": "Scaffold Go app (templ + htmx + Tailwind)",
-      "description": "Go project in /home/sam/home_network/web_sites/kontra_day: go.mod, templ templates, server (likely http (stdlib) or a minimal router), Goldmark for Markdown, YAML parsing for front-matter, static asset serving (kontra.css + fonts). Single static binary goal.",
-      "status": "completed",
-      "activeForm": "Scaffolding Go app",
-      "metadata": {},
-      "blocks": [],
-      "blockedBy": [],
-      "createdAt": 1788848933269,
-      "updatedAt": 1788851338939
-    },
-    {
-      "id": "3",
-      "subject": "Implement templates from DESIGN.md",
-      "description": "templ components: base layout, masthead (centered brand, meta line, desktop ribbon with topic dropdowns), mobile bottom nav + sections drawer, home (lead stack, Topics grid, Latest feed), subject index, article (header, hero plate, body, pull quote, field notes, save module, related, newsletter), site footer. Wire kontra.css design tokens.",
-      "status": "completed",
-      "activeForm": "Implementing templates",
-      "metadata": {},
-      "blocks": [],
-      "blockedBy": [],
-      "createdAt": 1788848933270,
-      "updatedAt": 1788851338939
-    },
-    {
-      "id": "4",
-      "subject": "Content model + loader (markdown + front-matter)",
-      "description": "Load .md content files with front-matter (title, author, date, tags, template, subject, image, excerpt, published, publish_at), subjects/_subject.yaml config, config/site.yaml, config/frontpage.yaml (template resolution page→subject→site→fallback). Goldmark rendering, {{media:...}} shortcode resolution.",
-      "status": "completed",
-      "activeForm": "Building content model",
-      "metadata": {},
-      "blocks": [],
-      "blockedBy": [],
-      "createdAt": 1788848933270,
-      "updatedAt": 1788851338940
-    },
-    {
-      "id": "5",
-      "subject": "Media: Garage S3 shortcodes + /media route",
-      "description": "Resolve {{media:...}} to Garage S3 URLs (bucket kontra-day on .13:3900), serve /media/* via Caddy. Shortcode defs: media, video (vimeo etc).",
-      "status": "completed",
-      "activeForm": "Wiring media shortcodes",
-      "metadata": {},
-      "blocks": [],
-      "blockedBy": [],
-      "createdAt": 1788848933270,
-      "updatedAt": 1788851426829
-    },
-    {
-      "id": "6",
-      "subject": "Admin: Decap CMS at admin.kontra",
-      "description": "Decap CMS (netlify-cms fork) config: collections for articles/subjects/pages, git backend to Gitea repo, media library pointing at Garage S3 (or local folder fallback). Serve at admin.kontra (subdomain).",
-      "status": "completed",
-      "activeForm": "Configuring Decap admin",
-      "metadata": {},
-      "blocks": [],
-      "blockedBy": [],
-      "createdAt": 1788848933270,
-      "updatedAt": 1788851471050
-    },
-    {
-      "id": "7",
-      "subject": "Deploy: Gitea repo + .13 systemd + timer",
-      "description": "Create Gitea repos (kontra content + maybe app), push, production clone at /var/www/kontra on .13, systemd service running the Go binary, 30s git pull timer, Caddy routes (kontra + admin.kontra) via .35 master proxy. Obsidian separate vault at /home/sam/obsidian/kontra/ = content repo.",
-      "status": "in_progress",
-      "activeForm": "Setting up deploy",
-      "metadata": {},
-      "blocks": [],
-      "blockedBy": [],
-      "createdAt": 1788848933270,
-      "updatedAt": 1788851471051
-    }
-  ]
+  "tasks": []
 }