Merge remote-tracking branch 'origin/master' into feat/web-message-feedback-ui

Adapt to two contract changes master introduced:

- The generated Remote face now wraps every business result in
  RemoteResult, folding carrier failures into an ok:false branch instead
  of rejecting. The controller reads that envelope at its three call
  sites and maps a carrier failure onto the same settled shape the
  controls already render; three specs cover the new branch.
- Client packages split their tsconfig into host and client halves, and
  the host aggregate now compiles any test not named *.client.spec.*.
  Rename this package's specs to the client convention and drop the
  ../connection project reference, which pointed at a solution file that
  no longer carries the client sources.

Keep master's mount loop with its rollback-on-failure in api-remotes and
add messageFeedbackRemote to it.

packages/client/ui-attachment/tests/message-image.client.spec.tsx

@@ -0,0 +1,103 @@
+// @vitest-environment jsdom
+
+import { afterEach, describe, expect, it, vi } from 'vitest'
+import { cleanup, fireEvent, render, waitFor } from '@testing-library/react'
+import { AttachmentId } from '@deepseek-ai/dsh-attachment'
+import { ImageGallery, MessageImage } from '../src/MessageImage.tsx'
+import type { MessageImageLabels } from '../src/MessageImage.tsx'
+
+afterEach(cleanup)
+
+const labels: MessageImageLabels = {
+  image: '图片',
+  open: '查看原图',
+  openNamed: label => `${label}，点击查看原图`,
+  loading: '图片加载中…',
+  loadFailed: '图片加载失败，点击重试',
+  lightbox: { dialog: '原图预览', close: '关闭原图预览' },
+}
+
+const attachment = {
+  attachmentId: AttachmentId(`sha256:${'a'.repeat(64)}`),
+  mediaType: 'image/png' as const,
+  bytes: 68,
+  width: 640,
+  height: 320,
+  name: 'history.png',
+}
+
+describe('MessageImage', () => {
+  it('loads a session-authorized URL, bounds the thumbnail, and clicks into the original', async () => {
+    const load = vi.fn().mockResolvedValue('blob:history')
+    const view = render(<MessageImage attachment={attachment} load={load} labels={labels} />)
+    const frame = view.getByRole('button', { name: 'history.png，点击查看原图' })
+    expect(frame.getAttribute('style')).toContain('width: 240px')
+    expect(frame.getAttribute('style')).toContain('height: 120px')
+    expect(frame.getAttribute('title')).toBe('查看原图')
+    await waitFor(() => { expect(view.getByAltText('history.png')).toBeTruthy() })
+    expect(load).toHaveBeenCalledWith(attachment)
+    fireEvent.click(frame)
+    expect(view.getByRole('dialog', { name: '原图预览' })).toBeTruthy()
+    fireEvent.click(view.getByRole('button', { name: '关闭原图预览' }))
+    expect(view.queryByRole('dialog', { name: '原图预览' })).toBeNull()
+  })
+
+  it('ignores a click while the thumbnail is still loading', () => {
+    const load = vi.fn(() => new Promise<string>(() => {}))
+    const view = render(<MessageImage attachment={attachment} load={load} labels={labels} />)
+    const frame = view.getByRole('button', { name: 'history.png，点击查看原图' })
+    expect(view.getByText('图片加载中…')).toBeTruthy()
+    fireEvent.click(frame)
+    expect(view.queryByRole('dialog')).toBeNull()
+  })
+
+  it('falls back to the image label for an unnamed attachment', async () => {
+    const { name: _named, ...unnamed } = attachment
+    const load = vi.fn().mockResolvedValue('blob:unnamed')
+    const view = render(<MessageImage attachment={unnamed} load={load} labels={labels} />)
+    await waitFor(() => { expect(view.getByAltText('图片')).toBeTruthy() })
+    expect(view.getByRole('button', { name: '图片，点击查看原图' })).toBeTruthy()
+  })
+
+  it('surfaces a retry control when durable bytes cannot be read, including a failed retry', async () => {
+    const load = vi.fn()
+      .mockRejectedValueOnce(new Error('offline'))
+      .mockRejectedValueOnce(new Error('still offline'))
+      .mockResolvedValueOnce('blob:retry')
+    const view = render(<MessageImage attachment={attachment} load={load} labels={labels} />)
+    const retry = await view.findByRole('button', { name: '图片加载失败，点击重试' })
+    fireEvent.click(retry)
+    const retryAgain = await view.findByRole('button', { name: '图片加载失败，点击重试' })
+    fireEvent.click(retryAgain)
+    await waitFor(() => { expect(view.getByAltText('history.png')).toBeTruthy() })
+    expect(load).toHaveBeenCalledTimes(3)
+  })
+
+  it('ignores a load settling after unmount', async () => {
+    let resolve: ((url: string) => void) | undefined
+    const load = vi.fn(() => new Promise<string>((r) => { resolve = r }))
+    const view = render(<MessageImage attachment={attachment} load={load} labels={labels} />)
+    view.unmount()
+    resolve?.('blob:late')
+    await Promise.resolve()
+    let reject: ((error: Error) => void) | undefined
+    const failing = vi.fn(() => new Promise<string>((_r, rej) => { reject = rej }))
+    const second = render(<MessageImage attachment={attachment} load={failing} labels={labels} />)
+    second.unmount()
+    reject?.(new Error('late failure'))
+    await Promise.resolve()
+  })
+})
+
+describe('ImageGallery', () => {
+  it('renders nothing without images and an aligned wrapping group with them', async () => {
+    const load = vi.fn().mockResolvedValue('blob:gallery')
+    const empty = render(<ImageGallery images={[]} load={load} align="start" labels={labels} />)
+    expect(empty.container.firstChild).toBeNull()
+    const view = render(
+      <ImageGallery images={[{ attachment }, { attachment }]} load={load} align="end" labels={labels} />,
+    )
+    expect(view.container.querySelector('[data-align="end"]')).not.toBeNull()
+    await waitFor(() => { expect(view.getAllByAltText('history.png')).toHaveLength(2) })
+  })
+})