🤖 Add Blowfish agent skill and plugin marketplace

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.claude-plugin/marketplace.json

@@ -0,0 +1,14 @@
+{
+  "name": "blowfish",
+  "owner": {
+    "name": "Nuno Coração",
+    "url": "https://github.com/nunocoracao"
+  },
+  "plugins": [
+    {
+      "name": "blowfish",
+      "source": "./.claude/skills/blowfish",
+      "description": "Teaches coding agents how to install, configure, and build sites with the Blowfish Hugo theme."
+    }
+  ]
+}