feat: MQTT migration, offline catch_up, clean session, image support

Matthias Nott

2026-03-24 cb470d33d2665fcc6f8448d2736777656cf0cbe7

 lib/providers/providers.dart
..
..
@@ -8,7 +8,7 @@
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 import '../models/server_config.dart';
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 import '../models/session.dart';
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 import '../services/message_store.dart';
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-import '../services/websocket_service.dart' show ConnectionStatus;
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+import '../services/mqtt_service.dart' show ConnectionStatus;
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 // --- Enums ---
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