圆桌第二步支持按席位筛选会商记录，左侧角色卡与消息头像联动。

新增 seat-filter 归一化匹配逻辑，点击角色卡或气泡头像可只看该席位发言，并支持一键显示全部。

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend-web/src/roundtable-planning/components/Step2Panel.tsx

@@ -68,6 +68,12 @@ import { ParallelSeatStrip } from "@/roundtable-planning/components/ParallelSeat
 import { DagFlowChart } from "@/roundtable-planning/components/DagFlowChart";
 import { useAutoScroll } from "@/roundtable-planning/hooks/useAutoScroll";
 import { useDialogueSpeedMetrics } from "@/roundtable-planning/hooks/useDialogueSpeedMetrics";
+import {
+  seatFilterForSender,
+  seatFilterLabel,
+  senderMatchesSeatFilter,
+  type SeatFilter,
+} from "@/roundtable-planning/lib/seat-filter";
 import type {
   AgentConfig,
   ParallelSeatView,
@@ -100,6 +106,10 @@ export interface Step2PanelProps {
   agentConfigs: Record<number, AgentConfig>;
   selectedAgentId: number | null;
   roles: RoleEntry[];
+  // ─── 按席位筛选会商记录(状态在页面层,与左侧角色卡片共用)──────────────
+  /** 当前筛选标识;null = 显示全部。 */
+  seatFilter: SeatFilter | null;
+  setSeatFilter: React.Dispatch<React.SetStateAction<SeatFilter | null>>;
   // ─── 并行显示（§5）────────────────────────────────────────────
   parallelBatch: ParallelSeatView[];
   selectedParallelSeats: string[];
@@ -161,6 +171,8 @@ export function Step2Panel(props: Step2PanelProps) {
     agentConfigs,
     selectedAgentId,
     roles,
+    seatFilter,
+    setSeatFilter,
     parallelBatch,
     selectedParallelSeats,
     isParallelRunning,
@@ -201,6 +213,36 @@ export function Step2Panel(props: Step2PanelProps) {
   const speedMeterEnabled = localSettings.display.streamSpeedMeterEnabled;
   const dialogueMetrics = useDialogueSpeedMetrics(step2RoundtableDialogues);
 
+  // ─── 按席位筛选会商记录 ──────────────────────────────────────────────────
+  // 筛选状态在页面层(与左侧「参与角色 / 人工参与」卡片共用)。点卡片或点气泡头像
+  // 都把目标归一化成同一 SeatFilter 标识(见 lib/seat-filter),命中 = 标识相等。
+  // 仅在单列(非并行)视图启用;并行进行时主区另有「头像条选席位」机制,互不干扰。
+  const toggleSeatFilter = useCallback(
+    (filter: SeatFilter) =>
+      setSeatFilter((cur) => (cur === filter ? null : filter)),
+    [setSeatFilter],
+  );
+  const visibleDialogues = useMemo(
+    () =>
+      seatFilter
+        ? step2RoundtableDialogues.filter((d) =>
+            senderMatchesSeatFilter(d.sender, seatFilter),
+          )
+        : step2RoundtableDialogues,
+    [seatFilter, step2RoundtableDialogues],
+  );
+  // 选中的席位若已不在对话里(切换草稿 / 重置后),自动清除筛选,避免卡在空列表。
+  useEffect(() => {
+    if (
+      seatFilter &&
+      !step2RoundtableDialogues.some((d) =>
+        senderMatchesSeatFilter(d.sender, seatFilter),
+      )
+    ) {
+      setSeatFilter(null);
+    }
+  }, [seatFilter, step2RoundtableDialogues, setSeatFilter]);
+
   // 并行进入/退出、或切换主区显示席位时,布局在「平铺列表 ↔ 两列/单列网格」之间切换,
   // scrollHeight 会突变、scrollTop 被浏览器 clamp → useAutoScroll 误判成「用户上滚」而停跟随
   // (表现为并行时自动下滑失效)。这里在这些布局切换点**重新拉到底部 + 恢复自动跟随**。
@@ -485,20 +527,55 @@ export function Step2Panel(props: Step2PanelProps) {
               })}
             </div>
           ) : (
-            step2RoundtableDialogues.map((msg) => (
-              <Step2Message
-                key={msg.id}
-                msg={msg}
-                metric={speedMeterEnabled ? dialogueMetrics.get(msg.id) : undefined}
-                resolveAgentName={resolveAgentName}
-                onArtifactStepClick={(step) => openArtifactFromStep(msg, step)}
-                onFileCardClick={(path) => {
-                  if (msg.agentThreadId) {
-                    openArtifactPreview(msg.agentThreadId, path);
-                  }
-                }}
-              />
-            ))
+            <>
+              {/* 席位筛选提示条：点卡片 / 头像只看某席位发言时出现,可一键显示全部。 */}
+              {seatFilter && (
+                <div className="sticky top-0 z-10 mb-1 flex items-center justify-between gap-2 rounded-lg border border-primary/20 bg-[var(--brand-200)]/20 px-3 py-1.5 backdrop-blur-sm">
+                  <span className="roundtable-chat-meta font-medium text-slate-600">
+                    仅显示{" "}
+                    <span className="font-bold text-primary">
+                      {seatFilterLabel(seatFilter)}
+                    </span>{" "}
+                    的发言
+                  </span>
+                  <button
+                    type="button"
+                    onClick={() => setSeatFilter(null)}
+                    className="roundtable-chat-meta inline-flex shrink-0 items-center gap-1 rounded-md px-2 py-0.5 font-semibold text-primary transition hover:bg-primary/10"
+                  >
+                    <X className="size-3.5" />
+                    显示全部
+                  </button>
+                </div>
+              )}
+              {seatFilter && visibleDialogues.length === 0 ? (
+                <div className="py-10 text-center text-xs text-slate-400">
+                  没有匹配「{seatFilterLabel(seatFilter)}」的消息
+                </div>
+              ) : (
+                visibleDialogues.map((msg) => (
+                  <Step2Message
+                    key={msg.id}
+                    msg={msg}
+                    metric={speedMeterEnabled ? dialogueMetrics.get(msg.id) : undefined}
+                    isAvatarSelected={
+                      seatFilter !== null &&
+                      senderMatchesSeatFilter(msg.sender, seatFilter)
+                    }
+                    onAvatarClick={() =>
+                      toggleSeatFilter(seatFilterForSender(msg.sender))
+                    }
+                    resolveAgentName={resolveAgentName}
+                    onArtifactStepClick={(step) => openArtifactFromStep(msg, step)}
+                    onFileCardClick={(path) => {
+                      if (msg.agentThreadId) {
+                        openArtifactPreview(msg.agentThreadId, path);
+                      }
+                    }}
+                  />
+                ))
+              )}
+            </>
           )}
         </div>
         {!step2AtBottom && <ScrollToBottomButton onClick={scrollStep2ToBottom} />}
@@ -706,6 +783,13 @@ export interface Step2MessageProps {
    * 由调用方按全局开关 streamSpeedMeterEnabled 决定是否传入(关则传 undefined)。
    */
   metric?: MessageMetric;
+  /**
+   * 点击头像的回调 —— 传入则头像变为可点的「按席位筛选」开关。不传(并行两列等
+   * 场景)则头像为纯展示,保持原样。
+   */
+  onAvatarClick?: () => void;
+  /** 当前筛选是否正命中本气泡的席位(命中则头像高亮)。 */
+  isAvatarSelected?: boolean;
   /** 把派活 chip 的 agent id 解析成中文席位名。 */
   resolveAgentName?: (idOrName: string) => string;
   onArtifactStepClick?: (
@@ -718,6 +802,8 @@ export interface Step2MessageProps {
 export function Step2Message({
   msg,
   metric,
+  onAvatarClick,
+  isAvatarSelected = false,
   resolveAgentName,
   onArtifactStepClick,
   onFileCardClick,
@@ -732,9 +818,32 @@ export function Step2Message({
   const hasContent = content.length > 0;
   const presentedFiles = collectPresentedFiles(msg.steps);
 
+  const avatarInner = getAvatar(msg.avatarType, "h-9 w-9 shrink-0");
+  // 传了 onAvatarClick → 头像变成「按席位筛选」开关:点亮当前筛选席位,带光圈高亮。
+  const avatar = onAvatarClick ? (
+    <button
+      type="button"
+      onClick={onAvatarClick}
+      aria-pressed={isAvatarSelected}
+      title={
+        isAvatarSelected
+          ? "取消筛选,显示全部发言"
+          : `只看 ${msg.sender} 的发言`
+      }
+      className={cn(
+        "shrink-0 cursor-pointer rounded-full transition hover:opacity-80 focus:outline-none focus-visible:ring-2 focus-visible:ring-primary/60",
+        isAvatarSelected && "ring-2 ring-primary ring-offset-1 ring-offset-white",
+      )}
+    >
+      {avatarInner}
+    </button>
+  ) : (
+    avatarInner
+  );
+
   return (
     <MessageBubble
-      avatar={getAvatar(msg.avatarType, "h-9 w-9 shrink-0")}
+      avatar={avatar}
       senderName={msg.sender}
       badge={msg.confidence}
       time={msg.time}

frontend-web/src/roundtable-planning/lib/seat-filter.ts

@@ -0,0 +1,63 @@
+/**
+ * 「按席位筛选会商记录」的匹配逻辑 —— 第二步左侧「参与角色 / 人工参与」卡片
+ * 与消息气泡头像共用同一套标识。
+ *
+ * 设计要点:把**任意一条气泡的 sender** 和**任意一张卡片**都归一化成同一个
+ * `SeatFilter` 字符串标识,于是「某气泡命中当前筛选」就等价于「两边标识相等」,
+ * 卡片点击与头像点击不再各写一套匹配规则。
+ *
+ * 三类标识:
+ *  - `"coordinator"`   —— 总控协调 / 系统 调度播报(对应「指挥员 / 主持人」卡片)
+ *  - `"user"`          —— 用户插话 / 澄清回复(对应「人工参与 · 用户」卡片)
+ *  - `"agent:<显示名>"` —— 某 AI 席位的发言(对应该席位卡片)
+ */
+import { COMMANDER_SEAT_ID, type RoleEntry } from "./roundtable-constants";
+
+export type SeatFilter = string;
+
+/** 总控协调气泡固定使用的 sender(见 useStep2Orchestration 的 appendStreamingDialogue)。 */
+export const COORDINATOR_SENDER = "总控协调";
+
+export const COORDINATOR_SEAT_FILTER: SeatFilter = "coordinator";
+export const USER_SEAT_FILTER: SeatFilter = "user";
+
+const AGENT_PREFIX = "agent:";
+
+/** 把一条气泡的 sender 归一化成筛选标识。 */
+export function seatFilterForSender(sender: string): SeatFilter {
+  if (sender === COORDINATOR_SENDER || sender === "系统") {
+    return COORDINATOR_SEAT_FILTER;
+  }
+  if (sender.startsWith("用户")) {
+    return USER_SEAT_FILTER;
+  }
+  // 去掉「方案设计 (deepseek-…)」这种「模型偏好已保存」播报的模型后缀,回到席位基名,
+  // 让它与该席位的正常发言归到同一标识。
+  const base = sender.replace(/\s*\([^)]*\)\s*$/, "").trim();
+  return `${AGENT_PREFIX}${base}`;
+}
+
+/** 把「参与角色」里的一行(席位)映射成筛选标识。 */
+export function seatFilterForRole(role: RoleEntry): SeatFilter {
+  // 指挥员 / 主持人(COMMANDER_SEAT_ID,human):对应总控协调 / 系统 调度播报流。
+  if (role.type === "human" || role.id === COMMANDER_SEAT_ID) {
+    return COORDINATOR_SEAT_FILTER;
+  }
+  return `${AGENT_PREFIX}${role.name}`;
+}
+
+/** 某 sender 是否命中当前筛选。 */
+export function senderMatchesSeatFilter(
+  sender: string,
+  filter: SeatFilter,
+): boolean {
+  return seatFilterForSender(sender) === filter;
+}
+
+/** 筛选提示条用的人类可读标签。 */
+export function seatFilterLabel(filter: SeatFilter): string {
+  if (filter === COORDINATOR_SEAT_FILTER) return "指挥员 / 主持人";
+  if (filter === USER_SEAT_FILTER) return "用户";
+  if (filter.startsWith(AGENT_PREFIX)) return filter.slice(AGENT_PREFIX.length);
+  return filter;
+}

frontend-web/src/roundtable-planning/pages/RoundtablePlanningPage.tsx

@@ -86,6 +86,11 @@ import {
   type RoleEntry,
   type SelectedAgent,
 } from "@/roundtable-planning/lib/roundtable-constants";
+import {
+  seatFilterForRole,
+  USER_SEAT_FILTER,
+  type SeatFilter,
+} from "@/roundtable-planning/lib/seat-filter";
 import {
   buildChainSeatSelection,
   type SeatSelectionResult,
@@ -215,6 +220,8 @@ export default function RoundtablePlanningPage() {
   const [step2SidebarExpanded, setStep2SidebarExpanded] = useState(true);
   const [step2Runs, setStep2Runs] = useState<DraftStep2RunSnapshot[]>([]);
   const [activeStep2RunId, setActiveStep2RunId] = useState<string | null>(null);
+  // 第二步「按席位筛选会商记录」—— 左侧角色卡片与中间消息头像共用的筛选标识。
+  const [seatFilter, setSeatFilter] = useState<SeatFilter | null>(null);
 
   // Step 3「结果绘制」结果 —— 持久化进草稿 step3。绘制完成由 onReportSaved 写入；
   // 加载草稿时 hydrateStep3 恢复；新建任务清空。step3SavedTick 递增触发一次草稿自动保存。
@@ -1153,6 +1160,8 @@ export default function RoundtablePlanningPage() {
           step2Runs={step2Runs}
           activeStep2RunId={activeStep2RunId}
           onSelectStep2Run={handleSelectStep2Run}
+          seatFilter={seatFilter}
+          setSeatFilter={setSeatFilter}
         />
 
         {/* MIDDLE VIEWPORT */}
@@ -1216,6 +1225,8 @@ export default function RoundtablePlanningPage() {
               agentConfigs={step2.agentConfigs}
               selectedAgentId={step2.selectedAgentId}
               roles={roles}
+              seatFilter={seatFilter}
+              setSeatFilter={setSeatFilter}
               parallelBatch={step2.parallelBatch}
               selectedParallelSeats={step2.selectedParallelSeats}
               isParallelRunning={step2.isParallelRunning}
@@ -1623,6 +1634,9 @@ interface LeftSidebarProps {
   step2Runs: DraftStep2RunSnapshot[];
   activeStep2RunId: string | null;
   onSelectStep2Run: (runId: string) => void;
+  /** 第二步「按席位筛选会商记录」—— 点角色卡片筛选,与中间消息头像共用。 */
+  seatFilter: SeatFilter | null;
+  setSeatFilter: React.Dispatch<React.SetStateAction<SeatFilter | null>>;
 }
 
 function Step2SandboxSidebarSync({
@@ -1662,8 +1676,13 @@ function LeftSidebar({
   step2Runs,
   activeStep2RunId,
   onSelectStep2Run,
+  seatFilter,
+  setSeatFilter,
 }: LeftSidebarProps) {
   const isStep2 = currentStep === 2;
+  // 仅第二步可按席位筛选会商记录;点中已选则取消(回到显示全部)。
+  const toggleSeatFilter = (filter: SeatFilter) =>
+    setSeatFilter((cur) => (cur === filter ? null : filter));
 
   // Step 3 隐藏左侧栏(原「参与与结论贡献」列),让中间「最终方案展示」自适应
   // 撑满整行宽度(右侧栏在 Step !==1 时也已 return null)。
@@ -1708,13 +1727,25 @@ function LeftSidebar({
                 <h2 className="text-xs font-bold text-slate-900 uppercase tracking-widest">参与角色</h2>
               </div>
               <div className="space-y-2.5 overflow-y-auto flex-1 pr-1 custom-scrollbar">
-                {roles.map((role) => (
-                  <RoleRow key={role.id} role={role} agentNameToRole={agentNameToRole} />
-                ))}
+                {roles.map((role) => {
+                  const filter = seatFilterForRole(role);
+                  return (
+                    <RoleRow
+                      key={role.id}
+                      role={role}
+                      agentNameToRole={agentNameToRole}
+                      active={seatFilter === filter}
+                      onSelect={() => toggleSeatFilter(filter)}
+                    />
+                  );
+                })}
               </div>
             </div>
 
-            <HumanParticipationCard />
+            <HumanParticipationCard
+              active={seatFilter === USER_SEAT_FILTER}
+              onSelect={() => toggleSeatFilter(USER_SEAT_FILTER)}
+            />
             <Step2RunSwitcher
               runs={step2Runs}
               activeRunId={activeStep2RunId}
@@ -1730,20 +1761,41 @@ function LeftSidebar({
 
             <CollapsedSidebarSection title="参与角色">
               <div className="flex flex-col items-center gap-2">
-                {roles.map((role) => (
-                  <RoleAvatarBadge
-                    key={role.id}
-                    role={role}
-                    agentNameToRole={agentNameToRole}
-                    size="h-8 w-8"
-                    showSpeakingAnimation
-                  />
-                ))}
+                {roles.map((role) => {
+                  const filter = seatFilterForRole(role);
+                  return (
+                    <RoleAvatarBadge
+                      key={role.id}
+                      role={role}
+                      agentNameToRole={agentNameToRole}
+                      size="h-8 w-8"
+                      showSpeakingAnimation
+                      active={seatFilter === filter}
+                      onSelect={() => toggleSeatFilter(filter)}
+                    />
+                  );
+                })}
               </div>
             </CollapsedSidebarSection>
 
             <CollapsedSidebarSection title="人工参与">
-              <Man1Avatar size="h-8 w-8" />
+              <button
+                type="button"
+                onClick={() => toggleSeatFilter(USER_SEAT_FILTER)}
+                aria-pressed={seatFilter === USER_SEAT_FILTER}
+                title={
+                  seatFilter === USER_SEAT_FILTER
+                    ? "取消筛选,显示全部发言"
+                    : "只看 用户 的发言"
+                }
+                className={cn(
+                  "shrink-0 cursor-pointer rounded-full transition hover:opacity-80 focus:outline-none focus-visible:ring-2 focus-visible:ring-primary/60",
+                  seatFilter === USER_SEAT_FILTER &&
+                    "ring-2 ring-primary ring-offset-2 ring-offset-white",
+                )}
+              >
+                <Man1Avatar size="h-8 w-8" />
+              </button>
             </CollapsedSidebarSection>
 
             <CollapsedSidebarSection title="任务概览">
@@ -1897,14 +1949,50 @@ function TaskOverviewCard({ currentStep }: { currentStep: number }) {
   );
 }
 
-function HumanParticipationCard() {
+function HumanParticipationCard({
+  active = false,
+  onSelect,
+}: {
+  /** 当前筛选是否命中「用户」(命中则高亮)。 */
+  active?: boolean;
+  /** 传入则可点击,用于筛选出用户的插话 / 澄清回复。 */
+  onSelect?: () => void;
+} = {}) {
+  const clickable = Boolean(onSelect);
   return (
     <div className="bg-white border border-slate-200/50 rounded-2xl p-4 shadow-[0_2px_8px_rgba(0,0,0,0.01)]">
       <div className="flex items-center gap-2 border-b border-slate-100 pb-2.5 mb-2.5">
         <Activity className="w-4 h-4 text-primary" strokeWidth={2.5} />
         <h2 className="text-xs font-bold text-slate-900 uppercase tracking-widest">人工参与</h2>
       </div>
-      <div className="flex min-h-[56px] items-center justify-between gap-3 rounded-xl border border-slate-100 bg-slate-50 p-3">
+      <div
+        role={clickable ? "button" : undefined}
+        tabIndex={clickable ? 0 : undefined}
+        aria-pressed={clickable ? active : undefined}
+        title={
+          clickable
+            ? active
+              ? "取消筛选,显示全部发言"
+              : "只看 用户 的发言"
+            : undefined
+        }
+        onClick={onSelect}
+        onKeyDown={
+          clickable
+            ? (e) => {
+                if (e.key === "Enter" || e.key === " ") {
+                  e.preventDefault();
+                  onSelect?.();
+                }
+              }
+            : undefined
+        }
+        className={cn(
+          "flex min-h-[56px] items-center justify-between gap-3 rounded-xl border border-slate-100 bg-slate-50 p-3 transition",
+          clickable && "cursor-pointer hover:border-primary/30 hover:bg-primary/5",
+          active && "ring-2 ring-primary ring-offset-1 ring-offset-white !border-primary/40",
+        )}
+      >
         <div className="flex min-w-0 items-center gap-3">
           <Man1Avatar size="h-10 w-10" />
           <span className="truncate text-sm font-bold leading-5 text-slate-800">用户</span>
@@ -2318,6 +2406,8 @@ function RoleAvatarBadge({
   agentNameToRole,
   size = "h-7 w-7",
   showSpeakingAnimation = false,
+  active = false,
+  onSelect,
 }: {
   role: RoleEntry;
   agentNameToRole: Record<
@@ -2326,16 +2416,21 @@ function RoleAvatarBadge({
   >;
   size?: string;
   showSpeakingAnimation?: boolean;
+  /** 当前筛选是否命中本席位(命中则头像高亮)。 */
+  active?: boolean;
+  /** 传入则头像可点击,用于「按席位筛选会商记录」(收起态)。 */
+  onSelect?: () => void;
 }) {
   const isOngoing = role.status === "研讨中";
   const animate = showSpeakingAnimation && isOngoing;
+  const clickable = Boolean(onSelect);
 
-  return (
+  const inner = (
     <div
-      title={`${role.name} · ${role.status}`}
       className={cn(
         "relative shrink-0 rounded-full",
         animate && "ring-2 ring-primary/50 ring-offset-2 ring-offset-white",
+        active && "ring-2 ring-primary ring-offset-2 ring-offset-white",
       )}
     >
       {animate && (
@@ -2346,33 +2441,80 @@ function RoleAvatarBadge({
       </div>
     </div>
   );
+
+  if (!clickable) {
+    return <div title={`${role.name} · ${role.status}`}>{inner}</div>;
+  }
+  return (
+    <button
+      type="button"
+      onClick={onSelect}
+      aria-pressed={active}
+      title={active ? "取消筛选,显示全部发言" : `只看 ${role.name} 的发言`}
+      className="shrink-0 cursor-pointer rounded-full transition hover:opacity-80 focus:outline-none focus-visible:ring-2 focus-visible:ring-primary/60"
+    >
+      {inner}
+    </button>
+  );
 }
 
 function RoleRow({
   role,
   agentNameToRole,
+  active = false,
+  onSelect,
 }: {
   role: RoleEntry;
   agentNameToRole: Record<
     string,
     { speakerId: number; avatarType: string; displayName: string }
   >;
+  /** 当前筛选是否命中本席位(命中则整卡高亮)。 */
+  active?: boolean;
+  /** 传入则整卡可点击,用于「按席位筛选会商记录」。 */
+  onSelect?: () => void;
 }) {
   const isActive =
     role.status === "在线" || role.status === "研讨中" || role.status === "已完成";
   const isOngoing = role.status === "研讨中";
   const isBootingUp = role.status === "正在上线";
+  const clickable = Boolean(onSelect);
 
   return (
     <div
       id={`role-item-${role.id}`}
-      className={`flex min-h-[60px] items-center justify-between gap-3 rounded-xl p-3 transition ${
+      role={clickable ? "button" : undefined}
+      tabIndex={clickable ? 0 : undefined}
+      aria-pressed={clickable ? active : undefined}
+      title={
+        clickable
+          ? active
+            ? "取消筛选,显示全部发言"
+            : `只看 ${role.name} 的发言`
+          : undefined
+      }
+      onClick={onSelect}
+      onKeyDown={
+        clickable
+          ? (e) => {
+              if (e.key === "Enter" || e.key === " ") {
+                e.preventDefault();
+                onSelect?.();
+              }
+            }
+          : undefined
+      }
+      className={cn(
+        "flex min-h-[60px] items-center justify-between gap-3 rounded-xl p-3 transition",
         isActive
           ? "bg-slate-50 border border-slate-100"
           : isBootingUp
             ? "bg-amber-50/60 border border-amber-100"
-            : "opacity-60"
-      }`}
+            : "opacity-60",
+        clickable && "cursor-pointer hover:border-primary/30 hover:bg-primary/5",
+        active &&
+          "ring-2 ring-primary ring-offset-1 ring-offset-white !border-primary/40 !opacity-100",
+      )}
     >
       <div className="flex min-w-0 items-center gap-3">
         <RoleAvatarBadge role={role} agentNameToRole={agentNameToRole} size="h-10 w-10" />