feat(roundtable): 会商席位「技能识别强化」改为按需开关(智能体级 + 链条每席位级)

弱模型补偿指令从全域生效改为默认关闭、两个 opt-in 开关取 OR:
- 智能体级: AgentConfig.seat_skill_directive(config.yaml),在智能体编辑弹窗
  (agent-card / agent-detail-panel)开关;agents 路由 create/update/读写全程穿。
- 业务链条每席位级: 存进链条 seats JSON(ChainSeatSchema.seat_skill_directive,
  无需 DB 列/迁移),在链条编辑器每个席位卡片右侧 ✨ 图标→下拉框(开关+说明)配置;
  按 agentId 查表穿到前台 useStep2Orchestration 各席位调用 + 后台作业
  seat_skill_directives:{agentId:bool} → InProcessRoundtableGateway.run_seat。
- ROUNDTABLE_SEAT_SKILL_DIRECTIVE 降级为总熔断开关(默认放行,不再 force-on)。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend-web/src/components/workspace/agents/agent-card.tsx

@@ -229,6 +229,10 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
   );
   const [editPublished, setEditPublished] = useState(agent.published);
   const [editIsPrivate, setEditIsPrivate] = useState(agent.is_private);
+  // 会商席位「技能识别强化」开关（弱模型补偿）。默认关。
+  const [editSeatSkillDirective, setEditSeatSkillDirective] = useState(
+    agent.seat_skill_directive ?? false,
+  );
   const [editSquareId, setEditSquareId] = useState(agent.square_id ?? "");
   const [publishPickerOpen, setPublishPickerOpen] = useState(false);
   const { data: publishSquares } = usePublishSquares();
@@ -274,6 +278,7 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
     setEditSquareId(agent.square_id ?? "");
     setSelectedSkills(agent.skills ?? []);
     setEditCommonQuestions(normalizeAgentQuestions(agent.common_questions));
+    setEditSeatSkillDirective(agent.seat_skill_directive ?? false);
   }, [
     agent.common_questions,
     agent.description,
@@ -282,6 +287,7 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
     agent.published,
     agent.square_id,
     agent.skills,
+    agent.seat_skill_directive,
     editOpen,
   ]);
 
@@ -295,6 +301,8 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
     if (agentDetail) {
       setEditSoul(agentDetail.soul ?? "");
       setEditCommonQuestions(normalizeAgentQuestions(agentDetail.common_questions));
+      // 列表响应不带 config 额外字段（seat_skill_directive 为 null），详情才有真值。
+      setEditSeatSkillDirective(agentDetail.seat_skill_directive ?? false);
     } else {
       setEditSoul(agent.soul ?? "");
     }
@@ -386,6 +394,8 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
       request.skills = selectedSkills;
     if (JSON.stringify(nextQuestions) !== JSON.stringify(baselineQuestions))
       request.common_questions = nextQuestions;
+    if (editSeatSkillDirective !== ((agentDetail?.seat_skill_directive ?? agent.seat_skill_directive) ?? false))
+      request.seat_skill_directive = editSeatSkillDirective;
 
     if (Object.keys(request).length === 0) {
       setEditOpen(false);
@@ -960,6 +970,19 @@ export function AgentCard({ agent, layout = "card", onPublisherClick }: AgentCar
                 onChange={setEditCommonQuestions}
               />
             </div>
+            <div className="flex items-center justify-between gap-3 rounded-md border p-3">
+              <div>
+                <p className="text-sm font-medium">会商技能识别强化</p>
+                <p className="text-muted-foreground text-xs">
+                  作为会商席位时，把已配置技能（含 SKILL.md 路径与「先 read_file
+                  再用」硬指令）拼进任务，补偿弱模型不识别技能。也可在业务链条配置里打开（任一即生效）。
+                </p>
+              </div>
+              <Switch
+                checked={editSeatSkillDirective}
+                onCheckedChange={setEditSeatSkillDirective}
+              />
+            </div>
             <div className="flex items-center justify-between rounded-md border p-3">
               <div>
                 <p className="text-sm font-medium">公开发布</p>

frontend-web/src/components/workspace/agents/agent-detail-panel.tsx

@@ -76,6 +76,8 @@ interface AgentDraft {
   published: boolean;
   featured: boolean;
   templateName: string;
+  /** 会商席位「技能识别强化」开关。 */
+  seatSkillDirective: boolean;
 }
 
 function draftFromAgent(agent: Agent): AgentDraft {
@@ -88,6 +90,7 @@ function draftFromAgent(agent: Agent): AgentDraft {
     published: agent.published,
     featured: agent.featured_order != null,
     templateName: agent.template_name ?? "",
+    seatSkillDirective: agent.seat_skill_directive ?? false,
   };
 }
 
@@ -295,6 +298,8 @@ export function AgentDetailPanel({
     if (draft.soul !== (agent.soul ?? "")) request.soul = draft.soul;
     if (draft.templateName.trim() !== (agent.template_name ?? ""))
       request.template_name = draft.templateName.trim();
+    if (draft.seatSkillDirective !== (agent.seat_skill_directive ?? false))
+      request.seat_skill_directive = draft.seatSkillDirective;
     if (nextPublished !== agent.published) request.published = nextPublished;
     if (JSON.stringify(draft.skills) !== JSON.stringify(agent.skills ?? []))
       request.skills = draft.skills;
@@ -561,6 +566,21 @@ export function AgentDetailPanel({
                 配置后，对话生成的 Markdown 文件可一键发布到知识入库接口。
               </p>
             </div>
+            <div className="bg-background/60 flex items-center justify-between rounded-lg border px-3 py-2">
+              <div className="pr-3">
+                <p className="text-sm font-medium">会商技能识别强化</p>
+                <p className="text-muted-foreground text-xs">
+                  作为会商席位时，把已配置技能（含 SKILL.md 路径与「先 read_file
+                  再用」硬指令）拼进任务，补偿弱模型不识别技能。也可在业务链条配置中打开（任一即生效）。
+                </p>
+              </div>
+              <Switch
+                checked={draft.seatSkillDirective}
+                onCheckedChange={(checked) =>
+                  setDraft({ ...draft, seatSkillDirective: checked })
+                }
+              />
+            </div>
             <div className="bg-background/60 flex items-center justify-between rounded-lg border px-3 py-2">
               <div>
                 <p className="text-sm font-medium">公开发布</p>