feat(satellites): file satellites under six classes with a toggle each

The satellites layer now sorts every object into Stations, Imaging,
Telecom, Starlink, Probes or Debris, each with a chip and a live count on
the layer row. Stations and Imaging show by default; the Starlink chip is
the former DENSE catalog switch. Hidden classes keep their points, so a
toggle needs no reload, and they leave the detection overlay and the voice
position lists.

A class comes, strongest evidence first, from CelesTrak SATCAT (object type
and status, served by a new /api/celestrak-satcat/<group> proxy route and
cached for a day), the bundled UCS Satellite Database pack (operator, owner
country and purpose), name patterns for later launches, and the CelesTrak
group. The core catalog also reads the resource, weather, planet, sar and
science groups. Payloads with no evidence of life launched 20 or more years
ago are filed as debris. The UCS pack, its build script and its data credit
are added.

src/i18n/locales/de.json

@@ -278,8 +278,6 @@
   "Starlink {detail} — click to retry": "Starlink: {detail} – zum erneuten Versuch klicken",
   "load failed": "Laden fehlgeschlagen",
   "Showing the full Starlink shell — click for the core catalog only": "Komplette Starlink-Schale sichtbar: klicken, um nur den Kernkatalog zu zeigen",
-  "DENSE ···": "DICHT ···",
-  "DENSE ✕": "DICHT ✕",
   "DENSE": "DICHT",
   "Syncing flow · Roads: {source}": "Verkehrsfluss wird synchronisiert · Straßen: {source}",
   "LIVE · Roads: {source} · Roads without flow hidden": "LIVE · Straßen: {source} · Straßen ohne Verkehrsdaten ausgeblendet",
@@ -3226,5 +3224,22 @@
   "Refresh map still": "Kartenstandbild aktualisieren",
   "The map still uses a separate request and may show a different moment.": "Das Kartenstandbild wird separat abgerufen und kann einen anderen Moment zeigen.",
   "Video plays from Québec 511, which sees your IP address.": "Das Video wird von Québec 511 abgespielt, das Ihre IP-Adresse sieht.",
+  "STATIONS": "STATIONEN",
+  "Crewed stations and the craft that visit them": "Bemannte Stationen und die Raumfahrzeuge, die sie anfliegen",
+  "IMAGING": "BILDGEBUNG",
+  "Earth observation: optical, radar, weather and science": "Erdbeobachtung: optisch, Radar, Wetter und Wissenschaft",
+  "TELECOM": "TELEKOM",
+  "Communications and navigation satellites, Starlink excepted": "Kommunikations- und Navigationssatelliten, ohne Starlink",
+  "STARLINK": "STARLINK",
+  "The Starlink constellation (thousands of extra points)": "Die Starlink-Konstellation (Tausende zusätzliche Punkte)",
+  "PROBES": "SONDEN",
+  "Space science, technology demonstration and other payloads": "Weltraumforschung, Technologiedemonstration und andere Nutzlasten",
+  "DEBRIS": "TRÜMMER",
+  "Rocket bodies, fragments and dead satellites": "Raketenstufen, Fragmente und ausgefallene Satelliten",
+  "Classes may lag: SATCAT is a cached copy": "Klassen evtl. veraltet: SATCAT ist eine zwischengespeicherte Kopie",
+  "Classes may lag: SATCAT unavailable": "Klassen evtl. veraltet: SATCAT nicht verfügbar",
+  "CelesTrak SATCAT gives each object's type and status. Without a current copy the classes rest on the UCS database, names and CelesTrak groups, so a satellite that has died since may still show as working.": "CelesTrak SATCAT liefert Typ und Status jedes Objekts. Ohne aktuelle Kopie stützen sich die Klassen auf die UCS-Datenbank, Namen und CelesTrak-Gruppen, sodass ein inzwischen ausgefallener Satellit noch als aktiv erscheinen kann.",
+  "STARLINK ···": "STARLINK ···",
+  "STARLINK ✕": "STARLINK ✕",
   "COURSE HOLD · AIS": "KURS FIX · AIS"
 }