loadConversation method
Load a conversation by session ID.
Implementation
Future<List<Map<String, dynamic>>?> loadConversation(String sessionId) async {
final messagesFile = File(
p.join(_sessionsDir, sessionId, 'messages.jsonl'),
);
if (!await messagesFile.exists()) return null;
final messages = <Map<String, dynamic>>[];
final lines = await messagesFile.readAsLines();
for (final line in lines) {
if (line.trim().isNotEmpty) {
messages.add(jsonDecode(line) as Map<String, dynamic>);
}
}
return messages;
}