dev@locazia: many fixes

app/api/routes/_system.py

@@ -47,6 +47,7 @@ async def s_api_system_send_status(request):
         return response.json({'error': 'Invalid signature'}, status=400)
 
     message = json.loads(message)
+    assert message.get('service') in request.app.ctx.memory.known_states, "Unknown service"
     request.app.ctx.memory.known_states[
         message['service']
     ] = {