feat(sat): the map says what a pass is worth

An unselected satellite was a four-pixel dot with a one-pixel white edge, and
the basemap decides whether that is visible at all: a pale marker vanishes into
pale terrain, a grey one into a dark ocean, and the operator can switch between
the two in one session. So: a dark halo under a white ring around a larger dot.
Two rings, because no single colour reads on both.

The ones above the horizon now carry their name. Not all of them — a dozen
labels is a map nobody can read — but the two or three an operator is choosing
between right now, which is what saves hovering each grey dot in turn to find
them.

Hovering said "name · elevation · altitude", none of which decides anything.
What decides whether to reach for the radio is how long is left, how high it
will get and where to point, so the tooltip now carries the pass: elevation and
azimuth with its compass point, distance with an arrow for closing or receding,
rise and set with a countdown and a direction, and the peak. A bird already in
view shows its SET countdown instead of its rise — that is the number that
matters at that moment. No pass in the window says so, because a blank reads as
a fault. It costs no extra prediction: the pass list on screen is indexed by
name, and the first entry for a name is its next pass.

The tooltip also had to stop closing itself. The layer is rebuilt every five
seconds as the birds move, and a rebuilt marker is a new marker, so the detail
being read disappeared mid-sentence. The map now tracks the pointer and reopens
the tooltip of the dot it is still on — that one only, so nothing hangs open
once the mouse has moved away.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>

changelog.json

@@ -6,13 +6,17 @@
       "Every rotator interface now lives in Settings ▸ Rotator, and the satellite page only picks one of them. EasyComm and PstRotator used to be described inside the satellite settings while the other backends were described in the rotator list, so one mast was configured twice. What you already set up is moved into the list for you and selected.",
       "Each rotator interface says whether it drives azimuth alone or azimuth and elevation, beside the interface itself. The satellite rotator list shows the azimuth-only ones greyed out rather than hiding them, so a rotor that cannot follow a pass says why.",
       "New rotator interface: ERC-M by DF9GR, the azimuth/elevation controller for a Yaesu G-5500. Over its USB COM port or the network, with its emulation set to GS-232. Untested on hardware — reports welcome.",
-      "EasyComm II is now an ordinary rotator interface, so it can turn the antenna from the compass and from a spot click, not only during a satellite pass."
+      "EasyComm II is now an ordinary rotator interface, so it can turn the antenna from the compass and from a spot click, not only during a satellite pass.",
+      "On the satellite map, an unselected satellite is readable: a bigger dot with a dark halo under a white ring, which shows up on a street map and on a dark ocean alike, and the ones above the horizon carry their name.",
+      "Hovering a satellite on the map now says what a pass is worth — elevation and azimuth, distance and whether it is closing or going away, rise and set with the countdown, and how high it will get. It no longer closes itself every five seconds while you read it."
     ],
     "fr": [
       "Toutes les interfaces de rotor sont désormais dans Réglages ▸ Rotator, et la page satellite ne fait qu’en choisir une. EasyComm et PstRotator se configuraient dans les réglages satellite pendant que les autres se configuraient dans la liste des rotors : un même pylône était décrit deux fois. Ce que vous aviez réglé est déplacé dans la liste et sélectionné automatiquement.",
       "Chaque interface de rotor indique si elle pilote l’azimut seul ou l’azimut et l’élévation, juste à côté de l’interface. La liste des rotors de la page satellite affiche les azimut-seul en grisé plutôt que de les cacher : un rotor qui ne peut pas suivre un passage dit pourquoi.",
       "Nouvelle interface de rotor : ERC-M de DF9GR, le contrôleur azimut/élévation pour un Yaesu G-5500. Via son port COM USB ou le réseau, avec son émulation réglée sur GS-232. Non testé sur matériel — vos retours sont les bienvenus.",
-      "EasyComm II devient une interface de rotor comme les autres : elle peut tourner l’antenne depuis le compas et depuis un clic sur un spot, plus seulement pendant un passage satellite."
+      "EasyComm II devient une interface de rotor comme les autres : elle peut tourner l’antenne depuis le compas et depuis un clic sur un spot, plus seulement pendant un passage satellite.",
+      "Sur la carte satellite, un satellite non sélectionné est lisible : un point plus gros avec un halo sombre sous un anneau blanc, visible aussi bien sur une carte routière que sur un océan noir, et ceux au-dessus de l’horizon portent leur nom.",
+      "Le survol d’un satellite sur la carte indique désormais ce que vaut le passage — élévation et azimut, distance et si elle diminue ou augmente, lever et coucher avec le décompte, et la hauteur qu’il atteindra. L’infobulle ne se referme plus toutes les cinq secondes pendant qu’on la lit."
     ]
   },
   {