RustyCMS: File-based headless CMS with REST API, admin UI, multilingual support

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

@types/SeoProps.ts

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+export type TwitterCardType =
+  | "summary"
+  | "summary_large_image"
+  | "app"
+  | "player";
+
+// Link interface matching astro-seo's Link (which extends HTMLLinkElement)
+// href must be string (not URL) to match astro-seo's expectations
+export interface Link {
+  rel?: string;
+  href?: string; // Only string, not URL
+  hreflang?: string;
+  media?: string;
+  type?: string;
+  sizes?: string;
+  prefetch?: boolean;
+  crossorigin?: string;
+  as?: string;
+  [key: string]: any;
+}
+
+export interface Meta {
+  property?: string;
+  name?: string;
+  content?: string;
+  httpEquiv?: string;
+  charset?: string;
+  [key: string]: any;
+}
+
+export interface SeoProperties {
+  title?: string;
+  titleTemplate?: string;
+  titleDefault?: string;
+  charset?: string;
+  description?: string;
+  canonical?: URL | string;
+  nofollow?: boolean;
+  noindex?: boolean;
+  languageAlternates?: {
+    href: URL | string;
+    hrefLang: string;
+  }[];
+  openGraph?: {
+    basic: {
+      title: string;
+      type: string;
+      image: string;
+      url?: URL | string;
+    };
+    optional?: {
+      audio?: string;
+      description?: string;
+      determiner?: string;
+      locale?: string;
+      localeAlternate?: string[];
+      siteName?: string;
+      video?: string;
+    };
+    image?: {
+      url?: URL | string;
+      secureUrl?: URL | string;
+      type?: string;
+      width?: number;
+      height?: number;
+      alt?: string;
+    };
+    article?: {
+      publishedTime?: string;
+      modifiedTime?: string;
+      expirationTime?: string;
+      authors?: string[];
+      section?: string;
+      tags?: string[];
+    };
+  };
+  twitter?: {
+    card?: TwitterCardType;
+    site?: string;
+    creator?: string;
+    title?: string;
+    description?: string;
+    image?: URL | string;
+    imageAlt?: string;
+  };
+  extend?: {
+    link?: Partial<Link>[];
+    meta?: Partial<Meta>[];
+  };
+  surpressWarnings?: boolean;
+}