fix: stop losing decodes, hanging on exit, and wedging the rig link

Three faults an operator's log finally made visible, plus the interface
work that came out of the same session.

Reliability:

- UDP events were dropped on backpressure without a word. A period hands
  over twenty-odd decodes at once, and one slow write to the radio was
  enough to fill the queue — so a decode simply never appeared, and the
  only detector was the operator comparing the panel with JTDX. The drop
  is now counted and logged, panadapter spots went to their own goroutine
  so the radio can no longer hold the decode stream up, and the queue is
  deep enough for a full period.

- The CAT manager waited for its poll loop with a bare <-done. A loop
  wedged in a serial read then blocked every later restart inside Start,
  before it could even try to connect: the rig stayed dead, no line was
  written anywhere, and only killing the process recovered it. The wait
  is bounded at ten seconds and says what it abandoned and why the next
  connect may fail.

- Shutdown had no logging at all, so a hang left nothing to go on and a
  process the operator had to kill — which then blocked the restart after
  an update. Every step is logged, and a watchdog forces the exit if one
  of them never returns.

Auto-call:

- A QSO in progress is now held by OpsLog itself rather than inferred
  from the sender's Status. The moment WSJT-X/JTDX dropped the DX call or
  the Enable-Tx flag between overs, the exchange looked finished and the
  next CQ was answered, interleaving two and then three QSOs on one
  slice. Released on log, on halt, on taking over, and by a watchdog.

Cluster console:

- Replies to a command were buried under the spot flood; a Replies
  toggle hides the DX spots, which the list above already shows.
- Twelve named command buttons beside the input, configured in
  Settings -> Cluster; a button with no command is not drawn.
- Following the tail is now an explicit switch, and sending a command
  re-arms it. It used to measure "am I at the bottom" AFTER committing
  the new lines, so a ten-line reply looked like the operator had
  scrolled up and was never followed — the one case it exists for.

Awards:

- An award can name NO field. The matching controls disappear with it
  and only hand-assigned references count, which is the only thing that
  can feed a reference like WWBOTA. A test pins that nothing else is
  scanned.
- WWBOTA added to the catalogue with its 31 342 references.

Elsewhere: the rotor widget's Stop button acknowledges the press like
the direction presets already did, and the docked band map can be
switched to fit-to-band from its own header.

changelog.json

@@ -1,4 +1,34 @@
 [
+  {
+    "version": "0.26.1",
+    "date": "",
+    "en": [
+      "Auto-call: a QSO in progress is now held by OpsLog itself, so a new station is no longer called in the middle of an exchange. The hold is released when that QSO is logged, when you halt or click another decode, and after four minutes without a contact.",
+      "Rotor widget: the Stop button now lights up when pressed, like the direction presets, so there is no doubt the order went out.",
+      "FT decodes: a decode could go missing from the panel when a period arrived as one burst — the internal queue discarded it in silence. It is now deep enough for a full period, panadapter spots no longer hold the stream up, and anything still lost is written to the log.",
+      "Closing OpsLog can no longer leave a process behind. Each shutdown step is written to the log, and if one of them hangs the application now forces its own exit instead of staying open — which also unblocks the restart after an update.",
+      "CAT: a rig link whose polling loop got stuck no longer freezes every later reconnection attempt in silence. The wait is now bounded and the problem is written to the log, instead of a radio that never comes back and no explanation anywhere.",
+      "Cluster console: the replies to your commands are no longer buried under the spot flood. A Replies button — on by default — hides the DX spots, which the list above already shows.",
+      "Cluster: twelve named command buttons beside the command box — name one \"Show filters\", give it SH/FILTER, and one click sends it. They are set up in Settings → Cluster; a button with no command is not shown.",
+      "Cluster console: a Follow button decides whether the view sticks to the newest line, and sending a command re-arms it — a long reply is now scrolled to instead of landing out of sight. Switch Follow off to read without being pulled back down; the arrow beside it returns to the end.",
+      "Band map: the docked map can be switched to fit-to-band from its own header — click the px/kHz readout. It is the same setting the Band Map tab drives, so the two always agree.",
+      "Awards: an award can now be set to search in NO field. The matching options disappear with it, and the award counts only the references you assign to a contact by hand — for a reference like WWBOTA, which has no ADIF field anywhere.",
+      "New award: WWBOTA (World Wide Bunkers on the Air), with its full reference list — 31 342 bunkers. References are assigned to a contact by hand, the award having no ADIF field of its own."
+    ],
+    "fr": [
+      "Appel automatique : le QSO en cours est désormais verrouillé par OpsLog lui-même, si bien qu'une nouvelle station n'est plus appelée au milieu d'un échange. Le verrou est levé quand ce QSO est journalisé, quand tu fais Stop ou cliques un autre décodage, et au bout de quatre minutes sans contact.",
+      "Widget rotor : le bouton Stop s'allume maintenant quand on l'enfonce, comme les présélections de direction, pour ne plus douter que l'ordre est parti.",
+      "Décodages FT : un décodage pouvait manquer dans le panneau quand une période arrivait d'un bloc — la file interne le jetait sans rien dire. Elle est désormais dimensionnée pour une période entière, les spots panadapter ne retiennent plus le flux, et ce qui serait encore perdu est écrit dans le journal.",
+      "Fermer OpsLog ne peut plus laisser un processus derrière. Chaque étape d'arrêt est écrite dans le journal, et si l'une d'elles se bloque l'application force désormais sa propre sortie au lieu de rester ouverte — ce qui débloque aussi le redémarrage après une mise à jour.",
+      "CAT : une liaison radio dont la boucle d'interrogation se bloquait figeait en silence toutes les tentatives de reconnexion suivantes. L'attente est désormais bornée et le problème écrit dans le journal, au lieu d'une radio qui ne revient jamais sans la moindre explication.",
+      "Console cluster : les réponses à tes commandes ne sont plus noyées sous le flot de spots. Un bouton Réponses — actif par défaut — masque les spots DX, que la liste au-dessus affiche déjà.",
+      "Cluster : douze boutons de commande nommés à côté du champ de saisie — nomme-en un « Voir filtres », donne-lui SH/FILTER, et un clic l'envoie. Ils se règlent dans Réglages → Cluster ; un bouton sans commande n'est pas affiché.",
+      "Console cluster : un bouton Suivre décide si la vue reste collée à la dernière ligne, et envoyer une commande le réarme — une longue réponse défile maintenant jusqu'à elle au lieu d'arriver hors champ. Désactive Suivre pour lire sans être ramené en bas ; la flèche à côté revient à la fin.",
+      "Bandmap : la carte ancrée peut passer en ajustement à la bande depuis son propre en-tête — cliquer l'indicateur px/kHz. C'est le même réglage que celui de l'onglet Bandmap, les deux sont donc toujours d'accord.",
+      "Diplômes : un diplôme peut désormais ne chercher dans AUCUN champ. Les options de reconnaissance disparaissent avec lui, et le diplôme ne compte que les références attribuées à la main sur un contact — pour une référence comme WWBOTA, qui n'a de champ ADIF nulle part.",
+      "Nouveau diplôme : WWBOTA (World Wide Bunkers on the Air), avec sa liste de références complète — 31 342 bunkers. Les références s'attribuent à la main sur un contact, le diplôme n'ayant pas de champ ADIF propre."
+    ]
+  },
   {
     "version": "0.26.0",
     "date": "",