Merge remote-tracking branch 'origin/master' into docs/post-v3-release-proofreading

# Conflicts:
#	docs/subsystems/feedback.i18n.yaml
#	docs/subsystems/feedback.zh.md

packages/client/ui-conversation/src/client/chat/MessageIconActions.tsx

@@ -1,7 +1,7 @@
 // Shared IconActions chrome for user and assistant messages: copy
 // live, optional branch wiring, and an optional date-aware clock.
 
-import { useCallback, useEffect, useId, useRef, useState } from 'react'
+import { useCallback, useEffect, useId, useRef, useState, type ReactNode } from 'react'
 import {
   IconBranchOutline16, IconCheckOutline16, IconCopyOutline16, Tooltip, writeClipboard,
 } from '@deepseek-ai/dsh-client-ui-primitives'
@@ -29,6 +29,11 @@ export interface MessageIconActionsProps {
   branchUnavailable?: boolean | undefined
   /** Parent layout class composed onto the actions row. */
   className?: string | undefined
+  /**
+   * Slot-rendered actions owned by independent plugins, placed between the
+   * built-in copy and branch controls.
+   */
+  extraActions?: ReactNode
   /** The owning view's locale seat, passed down as a plain prop. */
   t: ChatViewSlotProps['t']
 }
@@ -39,7 +44,8 @@ export interface MessageIconActionsProps {
  * @returns The actions row element.
  */
 export function MessageIconActions({
-  text, time, runMs, ttftMs, tokensPerSecond, clock, onBranch, branchUnavailable = false, className, t,
+  text, time, runMs, ttftMs, tokensPerSecond, clock, onBranch, branchUnavailable = false, className,
+  extraActions, t,
 }: MessageIconActionsProps) {
   const day = useCalendarDay()
   const reasonId = useId()
@@ -109,6 +115,7 @@ export function MessageIconActions({
           {copied ? <IconCheckOutline16 /> : <IconCopyOutline16 />}
         </button>
       </Tooltip>
+      {extraActions}
       {onBranch !== undefined && (
         <Tooltip label={branchUnavailable ? t('message.branchUnavailable') : t('message.branch')} side="bottom">
           {/* Native disabled buttons do not deliver the hover/focus events Tooltip needs. */}

packages/client/ui-conversation/src/client/chat/TurnTailNodeView.tsx

@@ -5,11 +5,12 @@ import { MessageIconActions } from './MessageIconActions.tsx'
 import { assistantText } from './turn-assistant.ts'
 import css from './TurnTailNodeView.module.css'
 
-type TurnTailNodeViewProps = ChatNodeViewProps<'turn-tail'> & PropsRenderSlots<'conversation.chat.turnTail'>
+type TurnTailNodeViewProps = ChatNodeViewProps<'turn-tail'>
+  & PropsRenderSlots<'conversation.chat.turnTail' | 'conversation.chat.assistant-actions'>
 
 /** Turn-local actions and feature tail over the Location index, independent of Assistant placement. */
 export const TurnTailNodeView = memo(function TurnTailNodeView({
-  node, openFile, forkAt, renderSlotChain, t, useSession,
+  node, openFile, forkAt, renderSlot, renderSlotChain, t, useSession,
 }: TurnTailNodeViewProps) {
   const data = node.data
   const hasLaterChatNode = useSession(snapshot =>
@@ -25,6 +26,12 @@ export const TurnTailNodeView = memo(function TurnTailNodeView({
   const runMs = turn.start === undefined || turn.end === undefined
     ? undefined
     : Math.max(0, turn.end.time - turn.start.time)
+  // Interruption-frozen partials carry no messageId, so they address no
+  // durable message and contribute no per-message actions.
+  const messageId = closing.finalNode.messageId
+  const assistantActions = messageId === undefined
+    ? null
+    : renderSlot('conversation.chat.assistant-actions', { messageId })
   return (
     <div className={css.root} data-turn-tail={data.turn} data-time-hover-root>
       {tail}
@@ -38,6 +45,7 @@ export const TurnTailNodeView = memo(function TurnTailNodeView({
         onBranch={() => { forkAt(closing.finalNode.seq) }}
         branchUnavailable={data.branchUnavailable || hasLaterChatNode}
         className={css.actions}
+        extraActions={assistantActions}
         t={t}
       />
     </div>

packages/client/ui-conversation/src/client/chat/register-node-renderers.ts

@@ -39,7 +39,10 @@ export function registerChatNodeRenderers(ctx: Context): void {
     name: 'conversation.chat.node',
     key: 'turn-tail',
     locale: NS,
-    children: { 'conversation.chat.turnTail': { kind: 'chain', scope: 'session' } },
+    children: {
+      'conversation.chat.turnTail': { kind: 'chain', scope: 'session' },
+      'conversation.chat.assistant-actions': { kind: 'list', scope: 'session' },
+    },
   }, TurnTailNodeView))
   ctx.slots.inject('conversation.chat.node', () => ctx.slots.register(
     { name: 'conversation.chat.node', key: 'unknown', locale: NS }, UnknownNodeView))

packages/client/ui-conversation/src/client/contract/slots.ts

@@ -11,6 +11,7 @@ import type {
   TurnLocation, WorkspaceId,
 } from '@deepseek-ai/dsh-client-runtime/client'
 import type { MarkdownFileMentions } from '@deepseek-ai/dsh-client-ui-primitives'
+import type { MessageId } from '@deepseek-ai/dsh-client-connection/client'
 import type {} from '@deepseek-ai/dsh-client-ui-layout/client'
 import type { ComposerBlock } from '../input/blocks.ts'
 import type {
@@ -77,6 +78,18 @@ declare module '@deepseek-ai/dsh-client-ui-slots' {
      * only to return null; an all-declined chain renders nothing.
      */
     'conversation.chat.turnTail': { kind: 'chain'; scope: 'session'; owner: TurnTailOwnerProps }
+    /**
+     * Action strip attached to one finalized assistant message, rendered
+     * inside that message's IconActions row. The chat entry owns the render
+     * site and passes the addressed message identity; contributors add
+     * per-message actions without importing the conversation implementation.
+     * Entries render by ascending `order`.
+     */
+    'conversation.chat.assistant-actions': {
+      kind: 'list'
+      scope: 'session'
+      owner: AssistantActionOwnerProps
+    }
     /** Selected Tool call output inside the details panel. */
     'conversation.details.tool': { kind: 'single'; scope: 'session'; owner: DetailsToolOwnerProps }
     /**
@@ -253,6 +266,16 @@ export interface TurnTailOwnerProps {
   openFile: (path: string) => void
 }
 
+/**
+ * Owner currency of the assistant-message action strip: the durable identity
+ * of the one finalized message the contributed actions address. Only finalized
+ * messages reach this slot, so the id is always present.
+ */
+export interface AssistantActionOwnerProps {
+  /** Stable identity carried from the `assistant/message` event. */
+  messageId: MessageId
+}
+
 /** Hook constrained to business data published on the current Chat Node's Turn. */
 export type UseChatNodeTurnData = <Key extends Extract<keyof ConversationTurnDataMap, string>>(
   key: Key,

packages/client/ui-conversation/src/client/conversation-nodes/assistant.ts

@@ -152,6 +152,7 @@ function finalNode(
     return {
       kind: 'assistant',
       seq: event.seq,
+      messageId: event.data.message.id,
       time: event.time,
       turn: state.turn,
       step: state.step,