Merge remote-tracking branch 'origin/worktree/web-multimodal-image-input' into worktree/web-multimodal-image-input

# Conflicts:
#	.agents/notes/implemented/feature/2026-07-22-web-multimodal-image-input-and-durable-attachments.i18n.yaml
#	apps/web/tests/code-mode-fixture.snapshot.ts
#	apps/web/tests/image-display.snapshot.ts
#	docs/architecture.i18n.yaml
#	docs/module-graph.md
#	packages/client/test-runtime/tests/runtime.spec.tsx
#	packages/client/ui-conversation/src/client/skeleton/ConversationSession.tsx
#	packages/client/ui-conversation/tests/terminal-card.spec.tsx
#	packages/client/ui-trajectory/src/client/layout.ts

packages/client/ui-conversation/tests/input-bar.spec.tsx

@@ -49,7 +49,7 @@ interface BenchOptions {
   leftItems?: React.ReactNode
   rightItems?: React.ReactNode
   attachments?: readonly ComposerAttachment[]
-  addImages?: (files: readonly File[], current: readonly ComposerAttachment[]) => string | null
+  addImages?: (files: readonly File[]) => string | null
 }
 
 /** Real machine behind the bar entry: sink spy, no slash pipeline (plain text goes straight to the sink). */
@@ -464,7 +464,7 @@ describe('image draft rail', () => {
         getData: () => '同时粘贴的文字',
       },
     })
-    expect(addImages).toHaveBeenCalledWith([image], [])
+    expect(addImages).toHaveBeenCalledWith([image])
     expect(shell.snapshot.draft).toBe('同时粘贴的文字')
 
     const video = new File([Uint8Array.of(1)], 'clip.mp4', { type: 'video/mp4' })
@@ -494,7 +494,7 @@ describe('image draft rail', () => {
     expect(dataTransfer.dropEffect).toBe('copy')
     expect(fireEvent.drop(card, { dataTransfer })).toBe(false)
     expect(view.queryByRole('status')).toBeNull()
-    expect(addImages).toHaveBeenCalledWith([image], [])
+    expect(addImages).toHaveBeenCalledWith([image])
   })
 
   it('ignores unsupported dropped files and refuses drops while locked', () => {
@@ -507,7 +507,7 @@ describe('image draft rail', () => {
       dataTransfer: { types: ['Files'], files: [documentFile], dropEffect: 'none' },
     })
     expect(view.getByText(/不支持的图片格式/)).toBeTruthy()
-    expect(addImages).toHaveBeenCalledWith([documentFile], [])
+    expect(addImages).toHaveBeenCalledWith([documentFile])
 
     const image = new File([Uint8Array.of(1)], 'locked.png', { type: 'image/png' })
     const locked = bench({ disabled: true, addImages })

packages/client/ui-conversation/tests/service-orchestration.spec.ts

@@ -69,6 +69,31 @@ describe('ConversationService', () => {
     await b.runtime.dispose()
   })
 
+  it('checks media type before preview allocation and leaves deployment limits to the host', async () => {
+    const b = await bench()
+    const created = vi.spyOn(URL, 'createObjectURL').mockImplementation(file => `blob:${(file as File).name}`)
+    try {
+      const files = Array.from(
+        { length: 11 },
+        (_, index) => new File([Uint8Array.of(index)], `${index}.png`, { type: 'image/png' }),
+      )
+      expect(b.root.createDraftImages(files)).toHaveLength(11)
+      expect(created).toHaveBeenCalledTimes(11)
+
+      const beforeRejectedBatch = created.mock.calls.length
+      expect(() => {
+        b.root.createDraftImages([
+          new File([Uint8Array.of(1)], 'valid.png', { type: 'image/png' }),
+          new File([Uint8Array.of(2)], 'invalid.svg', { type: 'image/svg+xml' }),
+        ])
+      }).toThrow('不支持的图片格式：image/svg+xml')
+      expect(created).toHaveBeenCalledTimes(beforeRejectedBatch)
+    } finally {
+      created.mockRestore()
+    }
+    await b.runtime.dispose()
+  })
+
   it('releases in-flight send images when the scope dies before the failure lands', async () => {
     const b = await bench()
     const created = vi.spyOn(URL, 'createObjectURL').mockReturnValue('blob:inflight-1')

packages/client/ui-conversation/tests/terminal-card.spec.tsx

@@ -395,7 +395,7 @@ describe('DetailsPanel Output section', () => {
         useSessions={bindSnapshotSelector(sessions)}
         useWorkspaces={bindSnapshotSelector(workspaces)}
         useInput={(() => { throw new Error('unused') })}
-        inputActions={{ setDraft: () => {}, submit: () => {}, addImages: () => {}, removeImage: () => {}, pruneImages: () => {} }}
+        inputActions={{ setDraft: () => {}, addImages: () => {}, removeImage: () => {}, pruneImages: () => {}, submit: () => {} }}
         useProjection={(() => undefined)}
         useStore={bindSnapshotSelector(chat)}
         actions={chat.actions}
@@ -566,7 +566,7 @@ describe('DetailsPanel Output section', () => {
           baselinesReady: true, recentWorkspaceId: undefined,
         }))}
         useInput={(() => { throw new Error('unused') })}
-        inputActions={{ setDraft: () => {}, submit: () => {}, addImages: () => {}, removeImage: () => {}, pruneImages: () => {} }}
+        inputActions={{ setDraft: () => {}, addImages: () => {}, removeImage: () => {}, pruneImages: () => {}, submit: () => {} }}
         useProjection={(() => undefined)}
         useStore={bindSnapshotSelector(chat)}
         actions={chat.actions}