Tag blog posts and sign them with a member

Tags are named in every language and made from the page form; the byline is
the member who signs a post on the site. The public API sends both, filters
posts by tag and lists the tags in use.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

public/api-types.d.ts

@@ -165,6 +165,14 @@ export interface PublicPage {
   unpublish_at?: string;
   updated_at: string;
   category: PublicCategory;
+  /**
+   * The ones named in this language, to link to the blog filtered by each.
+   */
+  tags: ({ name: string; slug: string })[];
+  /**
+   * The member who signs it, when they have a public profile.
+   */
+  byline?: { name: string; slug: string; headline?: string; avatar?: Image; path: string };
   alternates: Alternates;
   path?: string;
 }
@@ -398,6 +406,7 @@ export interface PublicApiPayloads {
   '/public/v1/slugs': Record<string, ({ id: number; updated_at: string; alternates: Record<string, string> })[]>;
   '/public/v1/redirects': ({ from: string; to: string; status: 301 | 302; locale?: string })[];
   '/public/v1/search': PublicSearchResult[];
+  '/public/v1/tags': ({ name: string; slug: string; count: number })[];
   '/public/v1/projects': PublicProject[];
   '/public/v1/projects/{slug}': PublicProject;
   '/public/v1/members': PublicMember[];