feat(ms-ai-architect): C3.3 — course_products (live-enumerert) + makeCourseClassifier (TDD) [skip-docs]

Produkt-slug->kategori-mapping for kurs-deteksjon (C3.3 av GODKJENT C3-spec).

- lib/taxonomy.mjs: makeCourseClassifier(tax) — speiler makeClassifier; forste
  in-domain produkt vinner; skill AVLEDES fra category_skill (lagres ALDRI i
  course_products -> kan ikke divergere); ukjent/tom/non-array -> null.
- data/domain-taxonomy.json: ny topp-niva course_products (slug->category) +
  provenance. 15 in-domain live slugs.
- test-taxonomy.test.mjs (+6): atferd (in-domain->{skill,category}, first-wins,
  out-of-domain/tom/non-array->null, manglende map) + REELL data-invariant
  (hver slug-kategori resolver til skill, derivasjon matcher) + azure-openai-live.

ENUMERERING (gotcha #2, live mot /api/v1/modules?products=<slug> server-side):
- DOD (0 treff): azure-ai-foundry, ai-services, azure-ai-services, foundry ->
  Foundry/AI-services-kurs dukker opp under 'azure-openai'.
- Slug-feller bekreftet live: 'fabric' (ikke microsoft-fabric), 'entra' (ikke
  microsoft-entra-id), 'azure-cosmos-db' (ikke cosmos-db), 'azure-cognitive-search'
  (ikke azure-ai-search).
- 'azure-kubernetes-service' live men EKSKLUDERT (ingen AI-kategori -> stoy).
- Inkluderte (15): azure-openai, azure-machine-learning, azure-cognitive-search,
  azure-cosmos-db, fabric, azure-databricks, microsoft-copilot-studio,
  power-automate, power-apps, power-platform, ai-builder, microsoft-365-copilot,
  microsoft-purview, entra, defender-for-cloud.

Avvik fra spec 4.4-eksempel: course_products lagrer slug->category (ikke
slug->{skill,category}); skill avledes — anti-divergens, encapsulated av
makeCourseClassifier (downstream-kontrakt {skill,category} uendret).

Gate 7 C3.3 mott: test gronn, eval --json IDENTISK (refTall/K-counts uendret).
kb-update 263->269, validate PASSED (239/0), null regresjon.

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

scripts/kb-update/lib/taxonomy.mjs

@@ -120,6 +120,31 @@ export function makeClassifier(tax) {
   };
 }
 
+/**
+ * Build a course classifier for the Learn Platform API course-detection spore
+ * (C3). course_products maps an in-domain product slug → category; the owning
+ * skill is DERIVED from category_skill (never stored redundantly), exactly as
+ * makeClassifier derives skill for URL classification — so the slug→skill path
+ * cannot diverge from the canonical category ownership. The FIRST in-domain
+ * product in the list wins; a course whose products are all out-of-domain (no
+ * slug in course_products) returns null and is therefore not a lead.
+ * @param {object} tax
+ * @returns {(products: string[]) => ({skill: string|null, category: string}|null)}
+ */
+export function makeCourseClassifier(tax) {
+  const map = tax.course_products ?? {};
+  return function classifyCourse(products) {
+    if (!Array.isArray(products)) return null;
+    for (const slug of products) {
+      const category = map[slug];
+      if (category) {
+        return { skill: tax.category_skill[category] ?? null, category };
+      }
+    }
+    return null;
+  };
+}
+
 /**
  * Build a file-priority function mirroring report-changes getFilePriority:
  * ordered regex rules over the lowercased path; first match wins; else default.