feat: add kafka admin integration

server/internal_admin_id_test.go

@@ -0,0 +1,15 @@
+package main
+
+import "testing"
+
+func TestInternalAdminDBIDKeepsNumericID(t *testing.T) {
+	const rawID int64 = 1559676214946304000
+
+	id, ok := parseInternalAdminDBID("1559676214946304000")
+	if !ok {
+		t.Fatal("numeric admin id was rejected")
+	}
+	if id != rawID {
+		t.Fatalf("numeric admin id = %d, want %d", id, rawID)
+	}
+}