Current behavior:

```
src/bitcoin-cli -signet decodescript 2103d3b9c8cc852f3b4a06bad1711fd1a1761a592bf1475edc0a5f97b31759eba330ac736476a914b6e87320e876a740fc1365aeb1f4b6ab2fe4210b88ad53b268
```
```json
{
  "asm": "03d3b9c8cc852f3b4a06bad1711fd1a1761a592bf1475edc0a5f97b31759eba330 OP_CHECKSIG OP_IFDUP OP_NOTIF OP_DUP OP_HASH160 b6e87320e876a740fc1365aeb1f4b6ab2fe4210b OP_EQUALVERIFY OP_CHECKSIGVERIFY 3 OP_CHECKSEQUENCEVERIFY OP_ENDIF",
  "desc": "raw(2103d3b9c8cc852f3b4a06bad1711fd1a1761a592bf1475edc0a5f97b31759eba330ac736476a914b6e87320e876a740fc1365aeb1f4b6ab2fe4210b88ad53b268)#uul8nd2t",
  "type": "nonstandard",
  "p2sh": "2N62ryy2gBC2QBSdsm832Tv6qCW5py53wJn",
  "segwit": {
    "asm": "0 43c1d0387e91045591f19ff6d60af2bc0d91473b79dc3238aa9d0430f89741bc",
    "desc": "addr(tb1qg0qaqwr7jyz9ty03nlmdvzhjhsxez3em08wryw92n5zrp7yhgx7qj56vra)#ugngfnm5",
    "hex": "002043c1d0387e91045591f19ff6d60af2bc0d91473b79dc3238aa9d0430f89741bc",
    "address": "tb1qg0qaqwr7jyz9ty03nlmdvzhjhsxez3em08wryw92n5zrp7yhgx7qj56vra",
    "type": "witness_v0_scripthash",
    "p2sh-segwit": "2N9diLEHbASsz1oAeDQJPg5mb4LaAju9175"
  }
}
```

It would be nice if this (also) returned miniscript.

Perhaps `getaddressinfo` could do this as well (after #24148).

cc @sipa, @darosior 
}
        view.SetBackend(viewDummy); 
    }
    
    const PrecomputedTransactionData txdata = PrecomputePSBTData(psbtx);
    for (unsigned int i = 0; i < psbtx.tx->vin.size(); ++i) {
        PSBTInput& input = psbtx.inputs.at(i);
        if (input.non_witness_utxo || !input.witness_utxo.IsNull()) {
            continue;
        }
        const Coin& coin = view.AccessCoin(psbtx.tx->vin[i].prevout);
        if (IsSegWitOutput(provider, coin.out.scriptPubKey)) {
            input.witness_utxo = coin.out;
        }
        
        
        
        SignPSBTInput(public_provider, psbtx, i, &txdata, 1);
    }
    
    for (unsigned int i = 0; i < psbtx.tx->vout.size(); ++i) {
        UpdatePSBTOutput(public_provider, psbtx, i);
    }
    CDataStream ssTx(SER_NETWORK, PROTOCOL_VERSION);
    ssTx << psbtx;
    return EncodeBase64(ssTx);
},
    };
}
static RPCHelpMan joinpsbts()