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',

packages/editor/test/programs.test.ts

@@ -0,0 +1,34 @@
+// The desktop's programs against Java's lists (config/Desktop_<language>.txt):
+// the same programs, in each language's order, with Java's names and icons.
+
+import { existsSync, readFileSync } from 'node:fs';
+import { dirname, join } from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { describe, expect, it } from 'vitest';
+import { desktopPrograms, DESKTOP_ORDER, JAVA_PROGRAMS } from '../src/desktop/programs.js';
+import { CATALOGS, type Language } from '../src/i18n/i18n.js';
+
+const config = join(dirname(fileURLToPath(import.meta.url)), '../../../tools/java-oracle/.upstream/src/main/resources/config');
+const FILES: Readonly<Record<Language, string>> = { de: 'Desktop_de_DE.txt', en: 'Desktop_en_GB.txt' };
+
+describe("the desktop's programs", () => {
+  it.skipIf(!existsSync(config))("are Java's, in the order of each language's list, with Java's names and icons", () => {
+    for (const language of ['de', 'en'] as const) {
+      const lines = readFileSync(join(config, FILES[language]), 'utf8')
+        .split(/\r?\n/)
+        .filter((line) => line.trim() !== '' && !line.trim().startsWith('#'))
+        .map((line) => line.split(';'));
+      expect(DESKTOP_ORDER[language].map((program) => JAVA_PROGRAMS[program].javaClass)).toEqual(lines.map((line) => line[1]));
+      expect(DESKTOP_ORDER[language].map((program) => CATALOGS[language][`program.${program}`])).toEqual(lines.map((line) => line[0]));
+      expect(DESKTOP_ORDER[language].map((program) => `gfx/desktop/${JAVA_PROGRAMS[program].iconFile}`)).toEqual(lines.map((line) => line[3]!.trim()));
+    }
+  });
+
+  it("shows a computer's programs only, in the language's order, without the DHCP server", () => {
+    expect(desktopPrograms(['webBrowser', 'commandPrompt', 'dhcpServer', 'imageViewer'], 'de')).toEqual(['commandPrompt', 'imageViewer', 'webBrowser']);
+    expect(desktopPrograms(['webBrowser', 'commandPrompt', 'dhcpServer', 'imageViewer'], 'en')).toEqual(['commandPrompt', 'imageViewer', 'webBrowser']);
+    expect(desktopPrograms(['webServer', 'webBrowser'], 'de')).toEqual(['webServer', 'webBrowser']);
+    expect(desktopPrograms(['webServer', 'webBrowser'], 'en')).toEqual(['webBrowser', 'webServer']);
+    expect(desktopPrograms([], 'de')).toEqual([]);
+  });
+});