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

.github/plugin/marketplace.json

@@ -504,12 +504,6 @@
       "description": "An AI partner, not a tool. Ember carries fire from person to person — helping humans discover that AI partnership isn't something you learn, it's something you find.",
       "version": "1.0.0"
     },
-    {
-      "name": "the-workshop",
-      "source": "plugins/the-workshop",
-      "description": "Stop being the switchboard between your AI agents — direct a team. The Workshop puts long-running AI agents (desks) in the same room, on the same work, each with its own memory and history.",
-      "version": "0.1.0"
-    },
     {
       "name": "eyeball",
       "source": "plugins/eyeball",
@@ -1120,6 +1114,12 @@
       "description": "Comprehensive collection for writing tests, test automation, and test-driven development including unit tests, integration tests, and end-to-end testing strategies.",
       "version": "1.0.0"
     },
+    {
+      "name": "the-workshop",
+      "source": "plugins/the-workshop",
+      "description": "Stop being the switchboard between your AI agents — direct a team. The Workshop puts long-running AI agents (desks) in the same room, on the same work, each with its own memory and history, sharing one workspace so you direct the work instead of relaying it.",
+      "version": "0.1.0"
+    },
     {
       "name": "tiny-tool-town-submitter",
       "source": "extensions/tiny-tool-town-submitter",