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/main/App.d.ts

@@ -371,6 +371,8 @@ export function FlexTune(arg1:boolean):Promise<void>;
 
 export function FlexZoomForSpot(arg1:string,arg2:number):Promise<void>;
 
+export function ForgetYaesuBandAntenna(arg1:string):Promise<void>;
+
 export function GetACOMStatus():Promise<acom.Status>;
 
 export function GetADIFMonitor():Promise<main.ADIFMonitorConfig>;
@@ -585,6 +587,8 @@ export function GetWinkeyerStatus():Promise<winkeyer.Status>;
 
 export function GetWorkedCallVariants():Promise<boolean>;
 
+export function GetYaesuBandAntennas():Promise<Record<string, number>>;
+
 export function GetYaesuState():Promise<cat.YaesuTXState>;
 
 export function GridSquares(arg1:string):Promise<Array<qso.GridSquare>>;
@@ -1111,6 +1115,8 @@ export function SetYaesuAFGain(arg1:number):Promise<void>;
 
 export function SetYaesuAGC(arg1:string):Promise<void>;
 
+export function SetYaesuAntenna(arg1:number):Promise<void>;
+
 export function SetYaesuAtt(arg1:number):Promise<void>;
 
 export function SetYaesuBand(arg1:string):Promise<void>;
@@ -1239,6 +1245,8 @@ export function WinkeyerTraceEnabled():Promise<boolean>;
 
 export function WorkedBefore(arg1:string,arg2:number):Promise<qso.WorkedBefore>;
 
+export function YaesuApplyBandAntenna(arg1:string):Promise<void>;
+
 export function YaesuSendCW(arg1:string):Promise<void>;
 
 export function YaesuStopCW():Promise<void>;