docs: record v1 RC tooling compatibility

editors/vscode/test/integration/run.js

@@ -8,8 +8,14 @@ const {downloadAndUnzipVSCode, runTests} = require('@vscode/test-electron');
 (async () => {
   const extensionDevelopmentPath = path.resolve(__dirname, '..', '..');
   const sourceWorkspace = path.join(extensionDevelopmentPath, 'test', 'workspace');
-  const temporary = fs.mkdtempSync(path.join(os.tmpdir(), 'himesan-vscode-integration-'));
+  // macOS exposes its temporary tree through /var, which is a symlink to
+  // /private/var. Hime-san intentionally rejects user-supplied workspace roots
+  // reached through symlinks, so make this test-owned path physical before it
+  // crosses the LSP boundary.
+  const temporaryRoot = process.platform === 'darwin' ? '/private/tmp' : fs.realpathSync(os.tmpdir());
+  const temporary = fs.realpathSync(fs.mkdtempSync(path.join(temporaryRoot, 'himesan-vscode-integration-')));
   const workspace = path.join(temporary, 'project [safe]');
+  const userData = path.join(temporary, 'user-data');
   fs.cpSync(sourceWorkspace, workspace, {recursive: true});
   try {
     const vscodeExecutablePath = await downloadAndUnzipVSCode('1.96.4');
@@ -17,7 +23,7 @@ const {downloadAndUnzipVSCode, runTests} = require('@vscode/test-electron');
       vscodeExecutablePath,
       extensionDevelopmentPath,
       extensionTestsPath: path.join(__dirname, 'suite', 'index.js'),
-      launchArgs: [workspace, '--disable-extensions', '--disable-gpu', '--skip-welcome', '--skip-release-notes'],
+      launchArgs: [workspace, `--user-data-dir=${userData}`, '--disable-extensions', '--disable-gpu', '--skip-welcome', '--skip-release-notes'],
       extensionTestsEnv: {HIMESAN_TEST_BINARY: process.env.HIMESAN_TEST_BINARY || ''},
     });
   } finally {