Add nightvision to marketplace

.claude-plugin/marketplace.json

@@ -1040,14 +1040,14 @@
       "homepage": "https://github.com/intercom/claude-plugin-external"
     },
     {
-      "name": "opsera-devsecops",
-      "description": "Opsera DevSecOps Agent — AI-powered architecture analysis, security scanning, compliance auditing, and SQL security for your codebase. Free trial included.",
+      "name": "nightvision",
+      "description": "Skills for working with NightVision, a DAST and API Discovery platform that finds exploitable vulnerabilities in web applications and REST APIs",
       "source": {
         "source": "url",
-        "url": "https://github.com/opsera-agents/opsera-devsecops.git",
-        "sha": "e797228134ee7d3199594eb0ee5a659df40c91da"
+        "url": "https://github.com/nvsecurity/nightvision-skills.git",
+        "sha": "7d7a3f342bbf4d02b6e012279800cf91ff0c1c97"
       },
-      "homepage": "https://opsera.ai/agents"
+      "homepage": "https://github.com/nvsecurity/nightvision-skills"
     }
   ]
 }