Add repomix MCP server

opencode.jsonc

@@ -18,6 +18,11 @@
       "type": "local",
       "command": ["/home/i78700es/.local/bin/flymcp"],
       "enabled": true
+    },
+    "repomix": {
+      "type": "local",
+      "command": ["npx", "-y", "repomix@latest", "--mcp"],
+      "enabled": true
     }
   }
 }