Fix Windows mpv handoff and tray setup (#82)

src/main/runtime/command-line-launcher.test.ts

@@ -1,5 +1,7 @@
 import test from 'node:test';
 import assert from 'node:assert/strict';
+import fs from 'node:fs';
+import os from 'node:os';
 import path from 'node:path';
 import {
   detectBun,
@@ -9,6 +11,7 @@ import {
   resolveLauncherInstallTarget,
   type BunSnapshot,
 } from './command-line-launcher';
+import { getRunCommand } from './command-line-launcher-deps';
 
 function createBunSnapshot(status: BunSnapshot['status']): BunSnapshot {
   return {
@@ -85,6 +88,48 @@ test('resolveBunInstallCommand prefers winget on Windows', () => {
   );
 });
 
+test('default runCommand preserves Windows cmd metacharacter args', async (t) => {
+  if (process.platform !== 'win32') return;
+
+  const tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'subminer-cmd-args-'));
+  const scriptPath = path.join(tempDir, 'argv.cmd');
+  const outputPath = path.join(tempDir, 'argv.txt');
+  t.after(() => {
+    fs.rmSync(tempDir, { recursive: true, force: true });
+  });
+  fs.writeFileSync(
+    scriptPath,
+    [
+      '@echo off',
+      'setlocal DisableDelayedExpansion',
+      '> "%SUBMINER_ARGV_OUT%" (',
+      '  echo 1=%~1',
+      '  echo 2=%~2',
+      '  echo 3=%~3',
+      '  echo 4=%~4',
+      '  echo 5=%~5',
+      '  echo 6=%~6',
+      ')',
+      '',
+    ].join('\r\n'),
+    'utf8',
+  );
+
+  const result = await getRunCommand({})(
+    scriptPath,
+    ['plain', 'has space', 'a&b', 'x|y', 'p%PATH%q', 'bang!z'],
+    {
+      env: { ...process.env, SUBMINER_ARGV_OUT: outputPath },
+    },
+  );
+
+  assert.equal(result.exitCode, 0, result.stderr);
+  assert.equal(
+    fs.readFileSync(outputPath, 'utf8'),
+    ['1=plain', '2=has space', '3=a&b', '4=x|y', '5=p%PATH%q', '6=bang!z', ''].join('\r\n'),
+  );
+});
+
 test('resolveBunInstallCommand falls back to scoop on Windows before official installer', () => {
   assert.deepEqual(
     resolveBunInstallCommand({