feat: add node resource profiling and admin device revocation

internal/sysinfo/sysinfo_test.go

@@ -0,0 +1,16 @@
+package sysinfo
+
+import (
+	"testing"
+)
+
+func TestCollect(t *testing.T) {
+	p := Collect("CONTROL")
+	if p.Role != "CONTROL" {
+		t.Fatalf("expected CONTROL, got %s", p.Role)
+	}
+	if p.CPUCores <= 0 {
+		t.Fatalf("expected >0 CPU cores, got %d", p.CPUCores)
+	}
+	t.Logf("Profile: %+v", p)
+}