feat(editor): F4.5b the device sheet for routers and home routers

Measured first: SheetRun now types into FILIUS' router and home router
panels, records five forwarding tables (holeTabelle) and steps in the
panel's table. Java turns a card address that passes the pattern but not
IP.ipCheck (".0.0.1") into null and the router panel throws; an empty
gateway is marked red yet taken; a refused table cell is stored as null;
a home router's DHCP client leaves its DHCP server running. None of the
nulls is adopted. The core's routeTableRows matches all five tables.

- doc: card addresses (the first card mirrored in the device's settings),
  router gateway, RIP, manual routes (a new row once all four cells pass,
  a cell, removal); the sheet reads cards with what their cable joins and
  the whole table
- editor: Java's tabs (general, each card titled by its address, the
  forwarding table greyed out under RIP; general, LAN, WAN on a home
  router); the open card's cable drawn active in Java's green

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/editor/src/i18n/de.json

@@ -30,19 +30,28 @@
   "menu.delete": "Löschen",
   "menu.removeAllCables": "Alle Verbindungen entfernen",
   "menu.removeCable": "Verbindung entfernen",
+  "route.destinationNetwork": "Ziel",
+  "route.gateway": "Nächstes Gateway",
+  "route.interfaceIPAddress": "Über Schnittstelle",
+  "route.subnetMask": "Netzmaske",
   "router.cancel": "Abbrechen",
   "router.prompt": "Wählen Sie die Anzahl der Schnittstellen des Vermittlungsrechners aus!",
   "router.title": "Anzahl Schnittstellen",
   "sheet.cable": "Kabelgebunden (LAN)",
   "sheet.cablePlugged": "Das Kabel ist noch eingesteckt.",
+  "sheet.cards": "Netzwerkkarten",
   "sheet.chooseNetwork": "Bitte auswählen",
   "sheet.close": "Schließen",
   "sheet.cloud": "als Wolke darstellen",
+  "sheet.connectedTo": "Verbunden mit {device}",
   "sheet.connection": "Anschluss",
   "sheet.defaultGateway": "Gateway",
+  "sheet.deleteEntry": "Eintrag löschen",
   "sheet.dhcpClient": "DHCP zur Konfiguration verwenden",
   "sheet.dnsServer": "Domain Name Server",
   "sheet.empty": "(leer)",
+  "sheet.forwardingTable": "Weiterleitungstabelle",
+  "sheet.general": "Allgemein",
   "sheet.invalidValue": "Dieser Wert ist ungültig.",
   "sheet.ipAddress": "IP-Adresse",
   "sheet.ipAsName": "IP-Adresse als Name verwenden",
@@ -51,9 +60,15 @@
   "sheet.macAsName": "MAC-Adresse als Name verwenden",
   "sheet.name": "Name",
   "sheet.network": "Drahtloses Netzwerk (SSID)",
+  "sheet.newEntry": "Neuer Eintrag",
+  "sheet.newEntryHint": "Die Zeile wird übernommen, sobald alle vier Felder gültig sind.",
+  "sheet.nic": "Netzwerkkarte {number}",
+  "sheet.notConnected": "Keine Verbindung",
   "sheet.notTaken": "Nicht übernommen – es gilt weiterhin {value}.",
   "sheet.port": "Port",
   "sheet.retention": "Gültigkeitsdauer SAT-Einträge (in Sek.)",
+  "sheet.rip": "Automatisches Routing",
+  "sheet.showAllEntries": "Alle Einträge anzeigen",
   "sheet.subnetMask": "Netzmaske",
   "sheet.switchSsid": "Name WLAN (SSID)",
   "sheet.title": "Einstellungen",