Add app source and tests

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

lib/Peach/see/home/ConnectHome.dart

@@ -0,0 +1,16 @@
+import '../../about/internal/application/DeploymentRecord.dart';
+import '../../about/internal/application/ServerProfile.dart';
+
+abstract class ConnectHome {
+  /// The dashboard's data, freshly read from storage.
+  void onDashboardLoaded(
+    List<ServerProfile> servers,
+    List<DeploymentRecord> history,
+  );
+
+  /// A server was saved; [server] is the stored version.
+  void onServerSaved(ServerProfile server);
+
+  /// The theme preference changed to [mode].
+  void onThemeChanged(String mode);
+}