Well, i love your passion and determination to build this wonderfull system.
Seeing Bticino, i presume, you live in Italy.
I would love to help with electrical installation as well with antenna installation, but there are a big distance from me to Italy.
Also, i want to point you, and, your panel builder, there is a green-yellow wire, connected to 0V output from Mean Well 24V power supply, this wire is connected to ground bar/PE ? If this is the case, my reccomendation is to disconnect this wire.
The problem arises when, in some countries, we have the so called "broken neutral" you risk to have 400V instead of 230V.
In Europe, where the sistem TN-C-S is being used, and in this case, the requirement is to instal a local earth electrode - whose resistace need to under 4 ohm - and connect toghether electrode, PEN from grid, and main bar with all green-yellow wires from your house/cabinet.