headers: fail Build on missing native exports and assert MI/COM layouts (#2739)

Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>

internal/collector/memory/memory.go

@@ -115,6 +115,10 @@ func (c *Collector) Close() error {
 }
 
 func (c *Collector) Build(logger *slog.Logger, _ *mi.Session) error {
+	if err := sysinfoapi.Load(); err != nil {
+		return err
+	}
+
 	c.availableBytes = prometheus.NewDesc(
 		prometheus.BuildFQName(types.Namespace, Name, "available_bytes"),
 		"The amount of physical memory immediately available for allocation to a process or for system use. It is equal to the sum of memory assigned to"+