//go:build !summercms_mcp

package surf

// Without the summercms_mcp tag (MCPBuildTag) the MCP module is not linked:
// the mountPier hook declared in router.go stays nil, so BuildRouter mounts
// nothing for mcp.* and refuses mcp.enabled: true with an error naming the
// tag. The tagged counterpart, pier_on.go, imports the pier module and sets
// the hook; this file declares nothing else so both builds compile.