功能：DirectProject 回合块标记 data-turn-key 供滚动锚点定位

- DirectProjectTurn 的正文块、执行过程折叠块与终态文案块写上 data-turn-key
- ToolCallGroup 与 AgentReasoning 新增可选 turnKey 透传，工具组与思考块也带回合身份
- 锚点按「回合 key + 块内序号 + 偏移」定位，不新增 DOM 包裹层

Co-authored-by: Junie <junie@jetbrains.com>

apps/ai-game-creator-shell/src/view/project-development/chat/components/AgentReasoning/AgentReasoning.tsx

@@ -18,10 +18,16 @@ function AgentReasoningImpl({
   text,
   label = '思考过程',
   testId,
+  turnKey,
 }: {
   text: string;
   label?: string;
   testId?: string;
+  /**
+   * 所属回合的 `DirectChatTurn.key`：写进 `data-turn-key`，供会话滚动的前插锚点按
+   * 「回合 key + 块序号」定位这一块（见 `DirectProjectConversation/conversationScrollAnchor.ts`）。
+   */
+  turnKey?: string;
 }) {
   const [expanded, setExpanded] = useState(false);
   /*
@@ -37,6 +43,7 @@ function AgentReasoningImpl({
       className="design-agent-reasoning"
       aria-label={label}
       data-testid={testId}
+      data-turn-key={turnKey}
       onToggle={(event) =>
         setExpanded((event.currentTarget as HTMLDetailsElement).open)
       }

apps/ai-game-creator-shell/src/view/project-development/chat/components/DirectProjectConversation/DirectProjectTurn.tsx

@@ -58,7 +58,11 @@ function renderTurnProcess(turn: DirectChatTurn, streamingKey: string | null) {
   );
   if (turn.state !== 'finished') return blocks;
   return (
-    <details className="message-turn-process" data-testid="turn-process">
+    <details
+      className="message-turn-process"
+      data-testid="turn-process"
+      data-turn-key={turn.key}
+    >
       <summary>执行过程</summary>
       <div className="message-turn-process-body">{blocks}</div>
     </details>
@@ -78,6 +82,7 @@ function DirectProjectTurnUsage({ turn }: { turn: DirectChatTurn }) {
       className="message-turn-usage"
       data-testid="turn-usage"
       data-turn-running="false"
+      data-turn-key={turn.key}
     >
       {`本轮结束于 ${new Date(endedAt).toLocaleTimeString('zh-CN', {
         hour12: false,
@@ -99,17 +104,27 @@ function renderBlock(
         calls={block.calls}
         active={turn.state === 'running'}
         className="message-tool-call"
+        turnKey={turn.key}
       />
     );
   }
   if (block.kind === 'reasoning') {
     return (
-      <AgentReasoning key={block.key} text={block.text} label="思考过程" />
+      <AgentReasoning
+        key={block.key}
+        text={block.text}
+        label="思考过程"
+        turnKey={turn.key}
+      />
     );
   }
   const role = block.kind === 'user' ? 'user' : 'assistant';
   return (
-    <div key={block.key} className={`message message--${role}`}>
+    <div
+      key={block.key}
+      className={`message message--${role}`}
+      data-turn-key={turn.key}
+    >
       <AgentMessageContent tone={tone}>
         <ChatMarkdownMessage
           role={role}

apps/ai-game-creator-shell/src/view/project-development/chat/components/ToolCallGroup/ToolCallGroup.tsx

@@ -42,6 +42,7 @@ export function ToolCallGroup({
   calls,
   active = false,
   className,
+  turnKey,
 }: {
   calls: DirectChatToolCard[];
   /**
@@ -51,6 +52,11 @@ export function ToolCallGroup({
    */
   active?: boolean;
   className?: string;
+  /**
+   * 所属回合的 `DirectChatTurn.key`：写进 `data-turn-key`，供会话滚动的前插锚点按
+   * 「回合 key + 块序号」定位这一块（见 `DirectProjectConversation/conversationScrollAnchor.ts`）。
+   */
+  turnKey?: string;
 }) {
   const [expanded, setExpanded] = useState(false);
   const bodyId = useId();
@@ -98,6 +104,7 @@ export function ToolCallGroup({
       }
       data-testid="agent-tool-call-group"
       aria-label="陶泥儿执行过程"
+      data-turn-key={turnKey}
       data-status={status}
       data-has-failure={hasFailure ? 'true' : undefined}
       data-duration-ms={timing.durationMs ?? ''}