feat(WP-0011): IHF Phase 10 — Hub Registry and Widget Marketplace

Delivers the hub registry discovery UI, widget pattern library,
governance template library, and marketplace dashboard.

Key changes:
- Schema: widget_patterns (widget_type FK to registry), widget_pattern_versions,
  pattern_adoptions, governance_templates (categories JSONB, validated at
  controller), governance_template_clones — all GAAF-compliant, no bare TEXT
  type discriminators
- Migration: 1743897600-ihf-phase10-hub-registry.sql
- HubRegistry controller + views: browsable view over hub_capability_manifests,
  hub_health_snapshots, hubs with per-hub GAAF compliance indicator
- WidgetPatterns controller + views: publish, version, adopt; adoption
  triggers manifest amendment draft when new types are introduced
- GovernanceTemplates controller + views: CRUD, clone with category
  validation against annotation_category_registry
- MarketplaceDashboard controller + view: full-text search, widget-type
  filter, sort, trending panel, autoRefresh
- API v2: /api/v2/hub-registry, /api/v2/widget-patterns (+ adopt endpoint)
- OpenAPI spec updated with Phase 10 paths
- GAAF scorecard: Customization 2.5 → 3.2; overall 3.41 → 3.56 (Strong)
- CLAUDE.md: Phase 10 complete; active workplan → Phase 11

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Web/Controller/Api/V2/OpenApi.hs

@@ -132,6 +132,14 @@ buildPaths = object
     , "/event-types" .= publicListPath "EventTypeRegistry"
     , "/annotation-categories" .= publicListPath "AnnotationCategoryRegistry"
     , "/token" .= tokenPath
+    -- Phase 10 — Hub Registry and Widget Marketplace
+    , "/hub-registry" .= getListPath "HubRegistryEntry"
+    , "/hub-registry/{hubId}" .= getShowPath "HubRegistryEntry"
+    , "/widget-patterns" .= getListPath "WidgetPattern"
+    , "/widget-patterns/{id}" .= getShowPath "WidgetPattern"
+    , "/widget-patterns/{id}/adopt" .= object
+        [ "post" .= writeOp "PatternAdoption" "AdoptPatternRequest"
+        ]
     ]
 
 getListPath :: Text -> Value