build: prepare external plugin beta publishing

extensions/twitch/package.json

@@ -25,6 +25,12 @@
       "defaultChoice": "npm",
       "minHostVersion": ">=2026.4.10"
     },
+    "compat": {
+      "pluginApi": ">=2026.4.10"
+    },
+    "build": {
+      "openclawVersion": "2026.5.1-beta.1"
+    },
     "channel": {
       "id": "twitch",
       "label": "Twitch",
@@ -36,6 +42,7 @@
       ]
     },
     "release": {
+      "publishToClawHub": true,
       "publishToNpm": true
     }
   }