Initial commit: watch-together phases 0-4 + presence hardening, internet-tested

apps/desktop/lib/src/state/connect_prefs.dart

@@ -0,0 +1,21 @@
+import 'package:hive_ce/hive.dart';
+
+const connectFormBoxName = 'connect_form';
+
+const connectKeyHost = 'host';
+const connectKeyPort = 'port';
+const connectKeySecret = 'secret';
+const connectKeyName = 'name';
+const connectKeyAvatarPath = 'avatarPath';
+const connectKeyMediaPath = 'mediaPath';
+const connectKeyLinkUrl = 'linkUrl';
+
+Future<Box> openConnectFormBox() => Hive.openBox(connectFormBoxName);
+
+Box? connectFormBoxIfOpen() =>
+    Hive.isBoxOpen(connectFormBoxName) ? Hive.box(connectFormBoxName) : null;
+
+String readString(Box box, String key, String fallback) {
+  final v = box.get(key);
+  return v is String ? v : fallback;
+}