fix linux desktop packaging paths (#1162)

Co-authored-by: xingzhi <chuzihao.czh@alibaba-inc.com>

scripts/harness-check.mjs

@@ -42,6 +42,7 @@ for (const dir of [
   'packages/client/src',
   'packages/server/src',
   'packages/desktop',
+  'packages/desktop/build/icons',
   'tests/client',
   'tests/server',
   'tests/e2e',
@@ -50,6 +51,21 @@ for (const dir of [
   requireDir(dir)
 }
 
+for (const icon of [
+  'packages/desktop/build/icon.png',
+  'packages/desktop/build/icon.icns',
+  'packages/desktop/build/icon.ico',
+  'packages/desktop/build/icons/16x16.png',
+  'packages/desktop/build/icons/32x32.png',
+  'packages/desktop/build/icons/48x48.png',
+  'packages/desktop/build/icons/64x64.png',
+  'packages/desktop/build/icons/128x128.png',
+  'packages/desktop/build/icons/256x256.png',
+  'packages/desktop/build/icons/512x512.png',
+]) {
+  requireFile(icon)
+}
+
 const agents = await readText('AGENTS.md')
 const agentLines = agents.trimEnd().split(/\r?\n/)
 if (agentLines.length > 120) {
@@ -101,10 +117,15 @@ if (!buildWorkflow.includes('npm run harness:check')) {
 }
 
 const desktopReleaseWorkflow = await readText('.github/workflows/desktop-release.yml')
+const electronBuilderConfig = await readText('packages/desktop/electron-builder.yml')
 if (!desktopReleaseWorkflow.includes('files: ${{ matrix.artifact_files }}')) {
   fail('desktop-release.yml must upload matrix-specific artifact_files')
 }
 
+if (!electronBuilderConfig.includes('icon: build/icons')) {
+  fail('electron-builder.yml must configure the Linux icon set')
+}
+
 for (const target of ['target_os: darwin', 'target_os: win32', 'target_os: linux']) {
   if (!desktopReleaseWorkflow.includes(target)) {
     fail(`desktop-release.yml is missing matrix target ${target}`)