tests: pin ink engine in _make_tui_argv npm-bootstrap tests (post-merge semantic fix)

Main's rewritten test_tui_npm_install.py tests call _make_tui_argv expecting
the Ink/npm flow unconditionally; with the dual-engine dispatch merged in,
_resolve_tui_engine() auto-selects opentui whenever ui-opentui/dist is built
in the repo, routing the call away from the path under test (first subprocess
became 'node --version' instead of 'npm run build'). Pin the engine to ink
via an autouse fixture, mirroring the existing pinning precedent in
test_tui_resume_flow.py.

apps/desktop/electron/workspace-cwd.test.cjs

@@ -0,0 +1,45 @@
+/**
+ * Tests for electron/workspace-cwd.cjs.
+ *
+ * Run with: node --test electron/workspace-cwd.test.cjs
+ */
+
+const test = require('node:test')
+const assert = require('node:assert/strict')
+const path = require('node:path')
+
+const { isPackagedInstallPath } = require('./workspace-cwd.cjs')
+
+const installRoot = path.resolve('/opt/Hermes')
+
+test('isPackagedInstallPath returns false when not packaged', () => {
+  assert.equal(
+    isPackagedInstallPath(installRoot, { isPackaged: false, installRoots: [installRoot] }),
+    false
+  )
+})
+
+test('isPackagedInstallPath flags the install root itself', () => {
+  assert.equal(
+    isPackagedInstallPath(installRoot, { isPackaged: true, installRoots: [installRoot] }),
+    true
+  )
+})
+
+test('isPackagedInstallPath flags paths nested under the install root', () => {
+  const nested = path.join(installRoot, 'resources', 'app.asar')
+
+  assert.equal(
+    isPackagedInstallPath(nested, { isPackaged: true, installRoots: [installRoot] }),
+    true
+  )
+})
+
+test('isPackagedInstallPath ignores paths outside the install root', () => {
+  const homeProject = path.resolve('/home/user/projects/demo')
+
+  assert.equal(
+    isPackagedInstallPath(homeProject, { isPackaged: true, installRoots: [installRoot] }),
+    false
+  )
+})