feat(cms): add static pages module

docs/Content-Management.md

@@ -0,0 +1,154 @@
+# Static Pages / CMS - Sprint 14
+
+## Scope
+
+Sprint 14 adds configuration-driven CMS support for unlimited marketplace static pages.
+
+Out of scope:
+- backend save endpoints
+- marketplace-specific content logic
+- hardcoded page names
+
+## Feature Architecture
+
+```text
+src/app/features/content-management/
+  facade/
+  services/
+  models/
+  pages/
+  components/
+```
+
+Main pieces:
+- `ContentPageService` normalizes bootstrap static page data
+- `ContentManagementFacade` exposes normalized pages and validation helpers
+- `StaticPagesEditorComponent` integrates CMS editing into Project Editor
+
+## Bootstrap Structure
+
+Static pages live under `bootstrap.staticPages`.
+
+Supported properties per page:
+- `id`
+- `slug`
+- `title`
+- `showInFooter`
+- `showInHeader`
+- `showInSitemap`
+- `icon`
+- `order`
+- `visibility`
+- `requiresAuthentication`
+- `footerGroup`
+- `translations`
+- `html`
+- `seo`
+
+## Translation Model
+
+Content can be stored in `translations[locale]`:
+- `title`
+- `html`
+- `seo`
+
+Legacy structures remain supported through normalization.
+
+## Dynamic Routing
+
+Frontend uses dynamic static page resolution instead of manual page registration.
+
+Current route surface:
+- `/:lang/:staticPath`
+- legacy compatibility: `/:lang/page/:key`
+
+Resolver maps route slug to bootstrap-configured page.
+
+## Header Generation
+
+Pages with `showInHeader: true` render in header navigation.
+
+No hardcoded page list required.
+
+## Footer Generation
+
+Footer can render grouped static pages from bootstrap flags and metadata.
+
+Supported grouping:
+- Company
+n- Customer
+- Legal
+- Support
+- Social
+
+Social links come from footer bootstrap config.
+
+## Rendering
+
+`StaticPageComponent` now:
+- resolves content by slug or id
+- reloads content when language changes
+- updates document title/meta
+- supports RTL-ready `dir` switching
+- renders backend HTML safely through sanitization
+
+## Editor Integration
+
+Project Editor now includes `Static Pages` section.
+
+Supported actions:
+- create page
+- delete page
+- enable footer/header/sitemap visibility
+- edit slug
+- edit icon
+- edit order
+- edit translations
+- edit HTML
+
+## Validation
+
+Current validation prevents:
+- duplicate slugs
+- empty titles
+
+## Future Backend Endpoints
+
+Recommended future endpoints:
+- `GET /builder/content-pages`
+- `PUT /builder/content-pages`
+- `POST /builder/content-pages/import`
+- `GET /builder/content-pages/export`
+- `POST /builder/content-pages/validate`
+
+## Example Bootstrap
+
+```json
+{
+  "staticPages": {
+    "about": {
+      "id": "about",
+      "slug": "about",
+      "title": { "en": "About Us", "ru": "О нас" },
+      "showInFooter": true,
+      "showInHeader": true,
+      "showInSitemap": true,
+      "icon": "info",
+      "order": 1,
+      "requiresAuthentication": false,
+      "footerGroup": "Company",
+      "translations": {
+        "en": {
+          "title": "About Us",
+          "html": "<h2>About</h2><p>Company story</p>"
+        }
+      },
+      "seo": {
+        "title": { "en": "About Us" },
+        "description": { "en": "About our marketplace" },
+        "canonical": "/about"
+      }
+    }
+  }
+}
+```

docs/platform/11-navigation-system.md

@@ -1,3 +1,8 @@
+## CMS Navigation Integration
+- Static pages with `showInHeader: true` may appear in header navigation automatically.
+- Static pages with `showInFooter: true` may be grouped into footer sections using `footerGroup`.
+- Social links remain footer-config driven and can coexist with CMS page groups.
+- Navigation stays configuration-driven; no marketplace-specific page names are hardcoded in frontend.
 # 11. Система навигации
 
 ## Назначение

docs/platform/12-static-pages-system.md

@@ -1,3 +1,8 @@
+## CMS Upgrade
+- Static pages now support unlimited bootstrap-driven entries under `staticPages`.
+- Each page may define slug, visibility, header/footer/sitemap flags, icon, order, translations, HTML and SEO metadata.
+- Frontend resolves pages dynamically from bootstrap instead of hardcoded page names.
+- Header and footer may consume the same static page registry without duplicating page definitions.
 # 12. Система статических страниц
 
 ## Назначение