feat: BLACK HEART DANCE HOUSE landing page

Landing page with Hero, About, Team, Classes, and Contact sections.
Light/dark mode, scroll reveal animations, Yandex Maps, responsive design.
Next.js 16 + Tailwind v4 + TypeScript.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/types/content.ts

@@ -0,0 +1,47 @@
+export interface ClassItem {
+  name: string;
+  description: string;
+  icon: string;
+}
+
+export interface TeamMember {
+  name: string;
+  role: string;
+  image: string;
+}
+
+export interface ContactInfo {
+  title: string;
+  address: string;
+  phone: string;
+  email: string;
+  instagram: string;
+  mapEmbedUrl: string;
+  workingHours: string;
+}
+
+export interface SiteContent {
+  meta: {
+    title: string;
+    description: string;
+  };
+  hero: {
+    headline: string;
+    subheadline: string;
+    ctaText: string;
+    ctaHref: string;
+  };
+  team: {
+    title: string;
+    members: TeamMember[];
+  };
+  about: {
+    title: string;
+    paragraphs: string[];
+  };
+  classes: {
+    title: string;
+    items: ClassItem[];
+  };
+  contact: ContactInfo;
+}