fix: plugin.json errors

Author: vishwasnavadak

.claude-plugin/plugin.json

@@ -20,19 +20,9 @@
     "nextjs",
     "architecture"
   ],
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/antstackio/antstack-claude-plugin"
-  },
+  "repository": "https://github.com/antstackio/antstack-claude-plugin",
   "homepage": "https://github.com/antstackio/antstack-claude-plugin#readme",
-  "bugs": {
-    "url": "https://github.com/antstackio/antstack-claude-plugin/issues"
-  },
-  "commands": [
-    "./commands"
-  ],
-  "agents": [
-    "./agents"
-  ],
+  "commands": "./commands",
+  "agents": "./agents",
   "hooks": "./hooks/cleanup-temp-files.json"
 }