fix(cli): add stub embedded assets generation to build process

cli/scripts/write-embedded-assets-stub.ts

@@ -0,0 +1,23 @@
+import { dirname, join } from 'node:path';
+import { writeFileSync } from 'node:fs';
+import { fileURLToPath } from 'node:url';
+
+const scriptDir = dirname(fileURLToPath(import.meta.url));
+const cliRoot = join(scriptDir, '..');
+const workspaceRoot = join(cliRoot, '..');
+const outputPath = join(workspaceRoot, 'server', 'src', 'web', 'embeddedAssets.generated.ts');
+const contents = [
+    '// This file is generated by cli/scripts/build-executable.ts when --with-web-assets is not used.',
+    '// It intentionally contains no embedded assets.',
+    '',
+    'export interface EmbeddedWebAsset {',
+    '    path: string;',
+    '    sourcePath: string;',
+    '    mimeType: string;',
+    '}',
+    '',
+    'export const embeddedAssets: EmbeddedWebAsset[] = [];',
+    ''
+].join('\n');
+
+writeFileSync(outputPath, contents, 'utf-8');