Replace the landing with the artifact design and rebuild the admin in Ant Design.

Adds consultation leads, section editors, and the one-time content reset for this release.

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

apps/api/prisma/schema.prisma

@@ -85,6 +85,22 @@ model GalleryItem {
   updatedAt DateTime @updatedAt
 }
 
+model Lead {
+  id           String   @id @default(cuid())
+  name         String
+  phone        String
+  businessType String
+  source       String   @default("consult")
+  aiQuery      String?
+  status       String   @default("new")
+  note         String?
+  ip           String?
+  createdAt    DateTime @default(now())
+  updatedAt    DateTime @updatedAt
+
+  @@index([status, createdAt])
+}
+
 model Media {
   id        String   @id @default(cuid())
   filename  String