Merge remote-tracking branch 'origin/fix/human-transcript-projection' into fix/web-transcript-projection

# Conflicts:
#	apps/web/tests/scaffold.ts
#	apps/web/tests/seeded-history.e2e.ts
#	apps/web/tests/snapshots/seeded-history/ui.expected.md
#	packages/client/ui-conversation/README.i18n.yaml
#	packages/client/ui-conversation/src/client/chat/MessageItem.tsx

packages/client/ui-conversation/tests/chat-branch-tails.spec.tsx

@@ -107,11 +107,48 @@ describe('MessageItem arms', () => {
     expect(view.queryByRole('button', { name: '复制' })).toBeNull()
   })
 
-  it('context and unknown nodes render their JSON rows', () => {
+  it('context uses the Tool calls disclosure chrome and keeps its JSON collapsed by default', () => {
     const ctxView = render(
-      <MessageItem node={{ kind: 'context', seq: 3, content: [], source: null } as never} />,
+      <MessageItem node={{
+        kind: 'context',
+        seq: 3,
+        content: [{ type: 'text', text: 'x\n"y":,[{}]' }],
+        source: { kind: 'plugin', plugin: 'fixture', empty: {}, list: [] },
+      } as never}
+      />,
     )
-    expect(ctxView.getByText(/上下文注入/)).toBeTruthy()
+    const disclosure = ctxView.getByRole('button', { name: '上下文注入' })
+    expect(disclosure.getAttribute('aria-expanded')).toBe('false')
+    expect(ctxView.container.querySelector('[data-context-injection-body]')).toBeNull()
+    expect(ctxView.container.querySelector('svg')).not.toBeNull()
+
+    fireEvent.click(disclosure)
+    expect(disclosure.getAttribute('aria-expanded')).toBe('true')
+    expect(ctxView.container.querySelector('[data-context-injection-body]')?.textContent).toBe(
+      '{ "content": [ { "type": "text", "text": "x\\n\\"y\\":,[{}]" } ], '
+      + '"source": { "kind": "plugin", "plugin": "fixture", "empty": {}, "list": [] } }',
+    )
+
+    fireEvent.keyDown(disclosure, { key: ' ' })
+    expect(disclosure.getAttribute('aria-expanded')).toBe('false')
+  })
+
+  it('context preserves the bounded JSON truncation contract', () => {
+    const view = render(
+      <MessageItem node={{
+        kind: 'context',
+        seq: 3,
+        content: [{ type: 'text', text: 'x'.repeat(21_000) }],
+        source: null,
+      } as never}
+      />,
+    )
+    fireEvent.click(view.getByRole('button', { name: '上下文注入' }))
+    expect(view.container.querySelector('[data-context-injection-body]')?.textContent)
+      .toMatch(/… 已截断，共 \d+ 字符$/)
+  })
+
+  it('unknown nodes retain the generic JSON row', () => {
     const unknownView = render(
       <MessageItem node={{ kind: 'unknown', seq: 4, type: 'surface/next', data: { x: 1 } } as never} />,
     )

packages/client/ui-conversation/tests/queue-dock.spec.tsx

@@ -197,9 +197,14 @@ describe('QueueDock', () => {
     expect(container.innerHTML).toBe('')
   })
 
-  it('ships the session-scoped registrant plugin shape', () => {
+  it('registers as the terminal composer-context entry', () => {
     expect(queueDockEntry.name).toBe('conversation-queue-dock')
     expect(queueDockEntry.inject).toEqual(['slots', 'conversation', 'sessions'])
-    expect(typeof queueDockEntry.apply).toBe('function')
+    const register = vi.fn()
+    queueDockEntry.apply({ slots: { register } } as never)
+    expect(register).toHaveBeenCalledWith(
+      expect.objectContaining({ name: 'conversation.input.dock', id: 'queue', order: 20 }),
+      QueueDock,
+    )
   })
 })

packages/client/ui-conversation/tests/todo-panel.spec.tsx

@@ -92,12 +92,12 @@ describe('TodoDock', () => {
     expect(screen.queryByTestId('todo-panel')).toBeNull()
   })
 
-  it('ships the registrant plugin shape (list entry above the queue rows)', () => {
+  it('registers between the goal and queue entries', () => {
     expect(todoDockEntry.name).toBe('conversation-todo-dock')
     expect(todoDockEntry.inject).toEqual(['slots', 'conversation'])
     const register = vi.fn()
     todoDockEntry.apply({ slots: { register } } as never)
-    expect(register).toHaveBeenCalledWith({ name: 'conversation.input.dock', id: 'todo', order: -1 }, TodoDock)
+    expect(register).toHaveBeenCalledWith({ name: 'conversation.input.dock', id: 'todo', order: 10 }, TodoDock)
   })
 })