feat: HAMLOG.online upload and confirmations, Yaesu antenna, a named port holder

HAMLOG.online is a seventh external service: one API key, one ADIF record per
QSO, immediate / delayed / on-close like the rest. They publish no API
documentation, so the protocol is read from THEIR OWN client — the HAMLOG Agent
(github.com/hamlogonline/Agent), which is the authoritative source short of
asking them:

	POST https://hamlog.online/api/agent/
	{"ADIFADD": {"APIKEY": k, "ADIFDATA": record}}   → {"STATUS":"OK"}
	{"KEYSTATUS": {"APIKEY": k}}                     → {"STATUS":"OK","CALLSIGN":…}

Success is STATUS == OK, not "no ERROR field": their failure carries ERROR and
no STATUS, and reading an unknown reply — a proxy page, a maintenance notice —
as an acceptance is how a contact goes missing without anyone noticing.

KEYSTATUS buys something no other service here offers: the key can be checked
BEFORE the first QSO, and the answer names the account. A key pasted from
another callsign is caught in the settings panel rather than through a week of
silent refusals.

Their confirmations are also an award source now, ticked like LoTW rather than
expressed through "custom". It reads the ADIF extras, not a column: the standard
names a field for hamlog.EU and none for hamlog.ONLINE, and borrowing the other
site's field would write a falsehood into every exported log. Three plausible
key names from their own export are accepted too, so nobody has to rename a
column by hand after an export.

Yaesu gains antenna selection (AN), remembered per band — the antenna picked on
a band comes back with it, with no table to fill in anywhere. Rigs with one
socket never answer AN and never show the row; the log says which case it is.

And a serial port that is refused now names its likely holder. OmniRig stays
resident once activated and keeps the port of the rig configured in it, so a
native backend never gets it — "Serial port busy" alone accused nobody, and an
FTDX10 spent a morning being blamed for it.

frontend/wailsjs/go/models.ts

@@ -1160,6 +1160,7 @@ export namespace cat {
 	    squelch: number;
 	    agc?: string;
 	    preamp: number;
+	    antenna: number;
 	    att: number;
 	    nb: boolean;
 	    nr: boolean;
@@ -1194,6 +1195,7 @@ export namespace cat {
 	        this.squelch = source["squelch"];
 	        this.agc = source["agc"];
 	        this.preamp = source["preamp"];
+	        this.antenna = source["antenna"];
 	        this.att = source["att"];
 	        this.nb = source["nb"];
 	        this.nr = source["nr"];
@@ -1367,6 +1369,7 @@ export namespace extsvc {
 	    hrdlog: ServiceConfig;
 	    eqsl: ServiceConfig;
 	    cloudlog: ServiceConfig;
+	    hamlog: ServiceConfig;
 	    delete_remote: boolean;
 	
 	    static createFrom(source: any = {}) {
@@ -1381,6 +1384,7 @@ export namespace extsvc {
 	        this.hrdlog = this.convertValues(source["hrdlog"], ServiceConfig);
 	        this.eqsl = this.convertValues(source["eqsl"], ServiceConfig);
 	        this.cloudlog = this.convertValues(source["cloudlog"], ServiceConfig);
+	        this.hamlog = this.convertValues(source["hamlog"], ServiceConfig);
 	        this.delete_remote = source["delete_remote"];
 	    }