test(ptc): cover defaults and align CUA fixtures with launch modes

packages/experimental/cua-macos/tests/persistent-bridge.built.e2e.ts

@@ -71,7 +71,7 @@ it.skipIf(process.platform === 'win32' || !existsSync(bridge) || !existsSync(boo
       }))
       expect((await run('await import("@deepseek-ai/dsh-cua/bridge")', 'unresolved')).error?.message).toContain('Cannot find package')
       const section = (await ctx.systemPrompt.assemble()).sections.find(value => value.name === 'computer-use:dsh-cua')
-      const initialization = section?.text.split('Persistent PTC initialization:\n')[1]
+      const initialization = section?.text.match(/Persistent PTC initialization:\n\n```ts\n([\s\S]*?)\n```/u)?.[1]
       expect(initialization).toContain('/lib/bridge.js')
       const first = await run(`${initialization}\nvar app = await cua.getApp("test.fixture"); var win = await app.getWindow(7); await win.click(0); var shot = await win.getScreenshot(); ({ mimeType: shot.mimeType, pixelWidth: shot.pixelWidth, pixelHeight: shot.pixelHeight, windowId: shot.windowId, byteLength: shot.bytes.length });`, 'first')
       expect(first.error).toBeUndefined()

packages/ptc-runtime/ptc-runtime/tests/service.spec.ts

@@ -45,6 +45,9 @@ describe('PtcRuntime service seam', () => {
     expect(runtime.isolation).toBe('in-process-stub')
     expect(runtime.sandboxMode).toBeUndefined()
     expect(runtime.programFormat).toBe('function-body')
+    expect(runtime.retainsState).toBe(false)
+    expect(runtime.executionInstructions).toBe('')
+    expect(runtime.timeout).toBeUndefined()
     await expect(runtime.release({})).resolves.toBeUndefined()
 
     const calls: unknown[] = []

snapshots/session/headless.snapshot.ts

@@ -50,7 +50,7 @@ import {
   type SnapshotManifest,
   type WorkspaceSnapshotEntry,
 } from '@deepseek-ai/dsh-session-snapshot'
-import { LOADER_SMOKE_TEST_TIMEOUT_MS, runLoaderSmoke } from '@deepseek-ai/dsh-loader-smoke'
+import { LOADER_SMOKE_TEST_TIMEOUT_MS, resolveExampleMode, runLoaderSmoke } from '@deepseek-ai/dsh-loader-smoke'
 import { resolvePwshPath } from '@deepseek-ai/dsh-pwsh-local'
 import { parseSessionLog, prepareSessionSnapshotFixtureForComparison } from '@deepseek-ai/dsh-llm-replay'
 
@@ -500,10 +500,13 @@ const workspaceSetups: Record<string, (cwd: string) => Promise<void>> = {
     // Keep the real prompt's bridge URL under the fixture workspace on every host.
     const source = join(repoRoot, 'packages/experimental/cua')
     const target = join(cwd, 'cua-runtime')
-    await cp(join(source, 'src'), join(target, 'src'), { recursive: true })
+    const face = resolveExampleMode() === 'lib' ? 'lib' : 'src'
+    const extension = face === 'lib' ? 'js' : 'ts'
+    const guidanceDirectory = face === 'lib' ? 'lib/types' : 'src'
+    await cp(join(source, face), join(target, face), { recursive: true })
     await copyFile(join(source, 'package.json'), join(target, 'package.json'))
     await symlink(join(source, 'node_modules'), join(target, 'node_modules'), 'dir')
-    await copyFile(join(repoRoot, 'packages/experimental/cua-macos/src/guidance.ts'), join(target, 'guidance.ts'))
+    await copyFile(join(repoRoot, `packages/experimental/cua-macos/${guidanceDirectory}/guidance.${extension}`), join(target, `guidance.${extension}`))
   },
   async 'windows-acl-skill'(cwd) {
     const target = join(cwd, '.dsh', 'skills', 'diagnose-windows-sandbox-acl', 'SKILL.md')

snapshots/session/ptc-script-retained/cua-guidance.mjs

@@ -9,8 +9,11 @@ export const Config = CuaConfig
 
 export async function apply(ctx, config) {
   const root = join(process.cwd(), 'cua-runtime')
-  const { installCua } = await import(pathToFileURL(join(root, 'src/index.ts')).href)
-  const { GUIDANCE } = await import(pathToFileURL(join(root, 'guidance.ts')).href)
+  // The snapshot launcher validates and propagates the selected program mode.
+  const face = process.env.DSH_EXAMPLE_MODE === 'lib' ? 'lib' : 'src'
+  const extension = face === 'lib' ? 'js' : 'ts'
+  const { installCua } = await import(pathToFileURL(join(root, face, `index.${extension}`)).href)
+  const { GUIDANCE } = await import(pathToFileURL(join(root, `guidance.${extension}`)).href)
   installCua(ctx, config, {
     helperPath: process.execPath,
     createChannel() { throw new Error('This prompt fixture does not perform native operations') },