Add backend-generated sitemap with website manifest sync and nginx SEO proxy support.

Stores synced route config from /meshkee/sitemap-config.json, serves sitemap.xml and robots.txt per tenant, and invalidates cache on CMS writes.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/business-settings/business-settings.types.ts

@@ -107,6 +107,41 @@ export type SpecialProductsSource = (typeof SPECIAL_PRODUCTS_SOURCE_IDS)[number]
 /** Per-business website CMS settings. */
 export type WebsiteSettings = {
   specialProductsSource: SpecialProductsSource;
+  /** Imported from GET https://{domain}/meshkee/sitemap-config.json */
+  sitemapConfig?: WebsiteSitemapConfig | null;
+};
+
+export type SitemapChangefreq =
+  | 'always'
+  | 'hourly'
+  | 'daily'
+  | 'weekly'
+  | 'monthly'
+  | 'yearly'
+  | 'never';
+
+export type SitemapStaticPageConfig = {
+  path: string;
+  changefreq?: SitemapChangefreq;
+  priority?: number;
+};
+
+export type SitemapPathTemplatesConfig = {
+  product?: string;
+  blog?: string;
+  portfolio?: string;
+  storeItemByProduct?: string;
+  video?: string;
+  instruction?: string;
+  workshop?: string;
+  userProduct?: string;
+};
+
+export type WebsiteSitemapConfig = {
+  baseUrl?: string | null;
+  staticPages?: SitemapStaticPageConfig[];
+  templates?: SitemapPathTemplatesConfig;
+  syncedAt?: string | null;
 };
 
 /** Optional business-dashboard CMS modules. Always-on areas (customers, website, etc.) are not listed. */