Add error handling for DNS resolution in getK8sRemoteURLArrayFunc

[Copilot]

ow.net.getDNS in getK8sRemoteURLArrayFunc had no error handling, causing the peer function to throw on DNS lookup failures or network issues instead of degrading gracefully.

Changes

• js/owrap.ch.js: Wrap ow.net.getDNS call in a try-catch; on failure, log the error via logErr (including the DNS name for context) and return []

try {
    var dnsRes = ow.net.getDNS(aOptions.dnsName, aOptions.recordType, aOptions.dnsServer, true);
    dnsArr = isArray(dnsRes) ? dnsRes : [ dnsRes ];
} catch(e) {
    logErr("getK8sRemoteURLArrayFunc DNS resolution failed for '" + aOptions.dnsName + "': " + e);
    return [];
}

Consistent with the existing try-catch already used for ow.net.getHostAddress() in the same function.

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