fix(profiles): station hardware must follow the active profile

Every setting is per profile, amplifiers included — that is the whole point of
one profile per station. But the amplifier clients were built once at startup
and again only when Settings was saved, so switching profile left them on the
previous profile's port. An operator with an SPE on COM9 for HF and another on
COM10 for 6 m had to open Settings and press Save after every switch. Save is
not a connect button; switching profile is what asks for that hardware.

The amplifier is what was reported, but it was never alone: the motorized
antenna, the Antenna Genius and the Tuner Genius are configured the same way and
were started in the same two places. All four now restart on a profile switch,
asynchronously, exactly as a save does.

Rotators were already correct — their client is built per command rather than
held open, so they read the active profile every time.

Unconditional, like a save: comparing each device's configuration across
profiles to skip a reconnect would trade a second of downtime for the chance of
missing one. A test now keeps the two lists in lockstep — anything started at
boot must be re-applied on a profile switch or be named, with its reason, as
something that must not be.

changelog.json

@@ -6,13 +6,15 @@
       "WinKeyer: the opening probe goes out as one write, matching a capture of a client that talks to the same K3NG keyer, and the handshake bytes are always logged so a keyer that stays silent can be diagnosed.",
       "DX cluster: when spots arrive and every one is filtered out, the panel says so, names the filters doing it and offers to clear them — it used to say “waiting for spots” beside a counter reading 76 live.",
       "DX cluster: the log times the connection and the first spot, so a slow first launch can be told apart from a quiet node.",
-      "Generic HTTP relay: its URLs were never actually sent — fixed. {value} sends the relay's label, {relay-1} counts from zero, no host needed."
+      "Generic HTTP relay: its URLs were never actually sent — fixed. {value} sends the relay's label, {relay-1} counts from zero, no host needed.",
+      "Switching profile now reconnects the amplifier, antenna, Antenna Genius and tuner — they stayed on the previous profile's ports until you saved Settings."
     ],
     "fr": [
       "WinKeyer : la sonde d’ouverture part en un seul envoi, calquée sur la capture d’un client qui dialogue avec le même manipulateur K3NG, et les octets de la poignée de main sont toujours journalisés pour diagnostiquer un manipulateur muet.",
       "Cluster DX : quand des spots arrivent et que tout est filtré, le panneau le dit, nomme les filtres responsables et propose de les effacer — il affichait « en attente de spots » à côté d’un compteur à 76 en direct.",
       "Cluster DX : le journal chronomètre la connexion et le premier spot, pour distinguer un premier lancement lent d’un nœud silencieux.",
-      "Relais HTTP générique : ses URL n’étaient jamais envoyées — corrigé. {value} envoie le libellé du relais, {relay-1} compte de zéro, hôte inutile."
+      "Relais HTTP générique : ses URL n’étaient jamais envoyées — corrigé. {value} envoie le libellé du relais, {relay-1} compte de zéro, hôte inutile.",
+      "Changer de profil reconnecte l’ampli, l’antenne, l’Antenna Genius et le tuner — ils restaient sur les ports du profil précédent jusqu’à un Enregistrer."
     ]
   },
   {