add plugins for cc and update .mcp.json

.claude/settings.json

@@ -13,5 +13,11 @@
         ]
       }
     ]
+  },
+  "enabledPlugins": {
+    "context7@claude-plugins-official": true,
+    "github@claude-plugins-official": true,
+    "typescript-lsp@claude-plugins-official": true,
+    "playwright@claude-plugins-official": true
   }
 }

.mcp.json

@@ -1,23 +1,3 @@
 {
-  "mcpServers": {
-    "context7": {
-      "type": "http",
-      "url": "https://mcp.context7.com/mcp"
-    },
-    "serena": {
-      "type": "stdio",
-      "command": "uvx",
-      "args": [
-        "--from",
-        "git+https://github.com/oraios/serena",
-        "serena-mcp-server",
-        "--context",
-        "claude-code",
-        "--project",
-        ".",
-        "--enable-web-dashboard=false"
-      ],
-      "env": {}
-    }
-  }
+  "mcpServers": {}
 }