Split skyflow-skills into its own marketplace; make this repo MCP-only

.claude-plugin/marketplace.json

@@ -3,12 +3,8 @@
   "owner": {
     "name": "Skyflow"
   },
+  "description": "Skyflow MCP server plugins for Claude Code. Skills are published separately from the skyflow-skills marketplace.",
   "plugins": [
-    {
-      "name": "skyflow-skills",
-      "source": "./skyflow-skills-plugin",
-      "description": "Skyflow skills for Claude Code: getting started, vault creation, REST API guidance, SDK migration, implementation planning, and SDK quickstarts."
-    },
     {
       "name": "skyflow-developer-mcp",
       "source": "./skyflow-developer-mcp-plugin",
@@ -19,5 +15,8 @@
       "source": "./skyflow-runtime-mcp-plugin",
       "description": "Skyflow Runtime MCP server for Claude Code (optional)."
     }
-  ]
+  ],
+  "renames": {
+    "skyflow-skills": null
+  }
 }