fix: address all 8 review comments

- Add YAML front matter to workshop-ta agent (name + description)
- Fix agent path: use 'workshop-ta' not './agents/workshop-ta.agent.md'
- Sort skills alphabetically in plugin.json
- Make Cairn dashboard reference conditional (full plugin from source repo)
- Update signal-write: write JSON to .signals/ AND note in journal
- Add partnership signal type to signal-write skill
- Inline CAIRN disposition in agent (treat external CAIRN.md as optional)
- Run npm run build to regenerate marketplace.json and docs

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Copilot-Session: 26faf13e-639c-4a21-ac05-c0dc2bff7c62

plugins/the-workshop/.github/plugin/plugin.json

@@ -16,12 +16,12 @@
     "developer-experience"
   ],
   "agents": [
-    "./agents/workshop-ta.agent.md"
+    "workshop-ta"
   ],
   "skills": [
-    "./skills/desk-open/",
+    "./skills/bench-read/",
     "./skills/desk-journal/",
-    "./skills/signal-write/",
-    "./skills/bench-read/"
+    "./skills/desk-open/",
+    "./skills/signal-write/"
   ]
 }