Add postiz to marketplace

.claude-plugin/marketplace.json

@@ -1040,14 +1040,14 @@
       "homepage": "https://github.com/intercom/claude-plugin-external"
     },
     {
-      "name": "voila-api",
-      "description": "Definitive guide for the Voila API. Covers shipment creation (Manual/Smart Shipping), real-time tracking, detailed history, manifesting, collections, webhooks, and third-party integrations (Sorted, Peoplevox, Mintsoft, Veeqo, JD).",
+      "name": "postiz",
+      "description": "Social media automation CLI for scheduling posts, managing integrations, uploading media, and tracking analytics across 28+ platforms including X, LinkedIn, Reddit, YouTube, TikTok, Instagram, and more",
       "source": {
         "source": "url",
-        "url": "https://github.com/TSedmanDC/Voila-API-Skill.git",
-        "sha": "b9cfcb860cb5ae4ece57d67422a6cdd92ef96739"
+        "url": "https://github.com/gitroomhq/postiz-agent.git",
+        "sha": "c5d1bf5f7e95a71e230fc19ae2150ddd9c549854"
       },
-      "homepage": "https://github.com/TSedmanDC/Voila-API-Skill"
+      "homepage": "https://postiz.com/agent"
     }
   ]
 }