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/View/GovernanceTemplates/Show.hs

@@ -0,0 +1,71 @@
+module Web.View.GovernanceTemplates.Show where
+
+import Web.Types
+import Generated.Types
+import IHP.Prelude
+import IHP.ViewPrelude
+import Data.Aeson (Value(..), decode, encode)
+import qualified Data.ByteString.Lazy.Char8 as BL
+
+data ShowView = ShowView
+    { template   :: !GovernanceTemplate
+    , hub        :: !Hub
+    , cloneCount :: !Int
+    }
+
+instance View ShowView where
+    html ShowView { .. } = [hsx|
+        <div class="mb-4">
+            <a href={GovernanceTemplatesAction} class="text-sm text-gray-500 hover:text-gray-700">
+                ← Governance Templates
+            </a>
+        </div>
+
+        <div class="flex items-center gap-3 mb-2">
+            <h1 class="text-2xl font-semibold">{template.name}</h1>
+            {if template.isPublished
+                then [hsx|<span class="px-2 py-0.5 rounded text-xs bg-green-100 text-green-800">published</span>|]
+                else [hsx|<span class="px-2 py-0.5 rounded text-xs bg-amber-100 text-amber-800">draft</span>|]}
+        </div>
+
+        <p class="text-sm text-gray-500 mb-1">Hub: {hub.name}</p>
+        <p class="text-sm text-gray-500 mb-4">{tshow cloneCount} clones</p>
+
+        {maybe mempty (\d -> [hsx|<p class="text-sm text-gray-600 mb-4">{d}</p>|]) template.description}
+
+        <div class="mb-4">
+            <h3 class="text-sm font-semibold text-gray-700 mb-2">Categories</h3>
+            <div class="flex flex-wrap gap-1">
+                {forEach (jsonArrayTexts template.categories) renderCategoryTag}
+                {if null (jsonArrayTexts template.categories)
+                    then [hsx|<span class="text-xs text-gray-400">None</span>|]
+                    else mempty}
+            </div>
+        </div>
+
+        <div class="mb-6">
+            <h3 class="text-sm font-semibold text-gray-700 mb-2">Template Body</h3>
+            <pre class="bg-gray-50 rounded border border-gray-200 p-3 text-xs font-mono overflow-x-auto">
+                {cs (BL.unpack (encode template.templateBody)) :: Text}
+            </pre>
+        </div>
+
+        {if template.isPublished
+            then [hsx|
+                <a href={CloneGovernanceTemplateAction { governanceTemplateId = template.id }}
+                   class="text-sm bg-indigo-600 text-white px-3 py-1.5 rounded hover:bg-indigo-700">
+                    Clone to My Hub
+                </a>
+            |]
+            else mempty}
+    |]
+
+renderCategoryTag :: Text -> Html
+renderCategoryTag cat = [hsx|
+    <span class="px-2 py-0.5 rounded text-xs bg-blue-100 text-blue-700 font-mono">{cat}</span>
+|]
+
+jsonArrayTexts :: Value -> [Text]
+jsonArrayTexts val = case decode (encode val) of
+    Just (arr :: [Text]) -> arr
+    Nothing              -> []