Phase 1: content source of truth — 40 documents across six areas

Satisfies the Phase 1 Definition of Done:

- content/ validates cleanly against the frozen schema. `make validate`
  reports OK: 40 document(s) validated, 0 violations.
- Six areas exist, each with an L1 entry: ai-overview, platform-overview,
  edge-overview, products-overview, history-overview, about-overview.
- All six areas have an L2 entry: ai-systems, platform-estate, edge-fleet,
  products-business, history-engagements, about-narrative.
- 28 L3 artefact stubs under content/<area>/l3/. Every artefacts[].url in
  every document resolves to one of them; the validator proves there are no
  dangling references (and a deliberately broken copy exits 1).
- Every metric value traces to a source line in the evidence notes or the
  approved metric set in reference/content-map.md (per-metric citations are
  recorded in the AUD-131 completion comment).
- Every document carries confidence and last_verified=2026-10-26; the
  validator rejects a missing or non-canonical value.
- docs/content-redaction.md records the redaction pass: identifiers, third
  party personal data, credentials and infrastructure detail excluded, with
  reasons, plus the two numbers that are reported rather than smoothed.

Honesty positions held: 3 businesses active (12 adoptions over time),
Where-Woof deployed and pre-market, failures kept in (edge-failures), no
promotion of in-progress work to delivered.

No site code, no templates, no CSS, no rendering (Phase 2).

content/products/products-overview.md

@@ -0,0 +1,25 @@
+---
+id: products-overview
+area: products
+level: 1
+title: "Products"
+claim: "Identified an overpriced market and shipped a cheaper substitute on commodity hardware — twelve adoptions over time and three businesses still running it."
+confidence: running
+period: "2014–"
+tech: [PHP, JavaScript, three.js, FFmpeg, ImageMagick, HDMI-CEC, Raspberry Pi, ESP32]
+metrics: [{label: "businesses currently running the product", value: 3}, {label: "adoptions over time", value: 12}, {label: "product lines", value: 3}]
+artefacts: [{type: doc, label: "Commercial signage on commodity hardware", url: "content/products/l3/products-signage.md"}, {type: doc, label: "The site builder behind it", url: "content/products/l3/products-websitebuilder.md"}, {type: doc, label: "Where-Woof — deployed and pre-market", url: "content/products/l3/products-where-woof.md"}]
+public: true
+last_verified: 2026-10-26
+tags: [products, signage, business, where-woof]
+---
+
+# Products
+
+**Claim.** A digital signage product built as deliberate disruption to thousand-dollar wall systems — three businesses still run it — plus the site builder that produced the marketing sites and a lost-property tag system that is deployed but not yet sold.
+
+**Status.** Running. The counts are the corrected ones: three businesses active now, twelve adoptions over time, and Where-Woof deployed without a market launch.
+
+**Why it is on an engineering CV.** Selling, deploying and still supporting software for other businesses is a different discipline from writing it. Two of the three products carry honest caveats that are stated rather than hidden: the signage platform is being rebuilt, and Where-Woof has not gone to market.
+
+**Start here.** [The commercial story](products-business.md) covers what each product is, what state it is in, and what it cost to run.