feat(editor): F4.6a simulation mode and a computer's desktop

Java's mode buttons start and stop the room, now in a worker of the
editor's page (LocalSimHost), with Java's speed slider. While the
simulation runs the design is locked as in Java: no palette, no sheet,
nothing moves, no undo. Cables that carry a frame light up in Java's
green, and a tap on a computer opens its desktop: Java's title, the
software installation first, then the installed programs in the order
of Java's list for the language, a taskbar with the network icon and
the network as the simulation runs it. The room sends that over a new
topic, node:<id>. Desktops stay over a return to the design and show
again at the next start. The programs' windows follow from F4.6b.

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

packages/editor/test/i18n.test.ts

@@ -109,6 +109,16 @@ const FROM_JAVA: Readonly<Record<string, string>> = {
   'connections.local': 'jvermittlungsrechnerkonfiguration_msg22',
   'connections.add': 'jvermittlungsrechnerkonfiguration_msg24',
   'connections.most': 'jvermittlungsrechnerkonfiguration_msg25',
+  'mode.speed': 'guimainmemu_msg16',
+  'mode.currentSpeed': 'guimainmemu_msg15',
+  'menu.showDesktop': 'guievents_msg3',
+  'desktop.home': 'desktoppanel_application',
+  'desktop.installation': 'desktoppanel_msg1',
+  'network.ipAddress': 'network_msg1',
+  'network.subnetMask': 'network_msg4',
+  'network.dnsServer': 'network_msg2',
+  'network.gateway': 'network_msg3',
+  'network.macAddress': 'network_msg9',
 };
 
 /** Java's words, mended: the prompt says "Vermittlungsrechnerns" (guicontainer_msg1). */
@@ -128,6 +138,9 @@ const FROM_JAVA_MENDED: Readonly<Record<string, readonly [string, (java: string)
   // Java's "\n" as line breaks; the last sentence of the German starts with a small letter there.
   'firewall.intro': ['jfirewalldialog_msg37', (java) => java.replaceAll('\\n', '\n').replace('\nüber', '\nÜber')],
   'firewall.filterSynHint': ['jfirewalldialog_msg43', (java) => java.replaceAll('\\n', '\n')],
+  // Without Java's key (Strg+D, Strg+R): in a browser they bookmark and reload the page.
+  'mode.design': ['guimainmemu_msg3', (java) => java.replace(/ \((Strg|Ctrl)\+D\)$/, '')],
+  'mode.simulation': ['guimainmemu_msg4', (java) => java.replace(/ \((Strg|Ctrl)\+R\)$/, '')],
   // Java's lines without their leading space and the empty one; a step starts with a capital letter.
   'connections.hint': [
     'jvermittlungsrechnerkonfiguration_msg19',