feat: add discuss plugin with interactive documentation workflows (#61)

Author: jeffh

.claude-plugin/marketplace.json

@@ -8,6 +8,17 @@
     "email": "jeff@jeffhui.net"
   },
   "plugins": [
+    {
+      "name": "discuss",
+      "description": "Interactive discussion workflows for planning features, creating reference docs, and clarifying thoughts through iterative Q&A",
+      "source": "./discuss",
+      "category": "productivity",
+      "version": "2026-01-12",
+      "author": {
+        "name": "Jeff Hui",
+        "email": "jeff@jeffhui.net"
+      }
+    },
     {
       "name": "humanlayer",
       "description": "Commands and agents from humanlayer, but without the thought syncing",