feat(mindspace): gate published page delivery

src/hooks/useTKMindChat.ts

@@ -279,6 +279,10 @@ function isTransientConnectError(err: unknown) {
   return /超时|timeout/i.test(err.message);
 }
 
+function isMissingAgentSessionError(err: unknown) {
+  return err instanceof ApiError && /session not found/i.test(err.message);
+}
+
 async function withTransientConnectRetry<T>(fn: () => Promise<T>, attempts = 3): Promise<T> {
   let lastErr: unknown;
   for (let attempt = 0; attempt < attempts; attempt += 1) {
@@ -329,6 +333,7 @@ export function useTKMindChat(
   const subscribedSessionIdRef = useRef<string | null>(null);
   const unsubscribeRef = useRef<(() => void) | null>(null);
   const connectTokenRef = useRef(0);
+  const unavailableAgentSessionIdsRef = useRef(new Set<string>());
   const messagesRef = useRef<Message[]>([]);
   const sessionRef = useRef<Session | null>(null);
   const sessionsRef = useRef<SessionSummary[]>([]);
@@ -1139,7 +1144,9 @@ export function useTKMindChat(
           }),
         );
         const resumedPromise =
-          options?.skipResume || isDirectChatSessionId(sessionId)
+          options?.skipResume ||
+          isDirectChatSessionId(sessionId) ||
+          unavailableAgentSessionIdsRef.current.has(sessionId)
             ? Promise.resolve(options.seedSession ?? null)
             : withTransientConnectRetry(() =>
                 resumeSession(sessionId, {
@@ -1160,7 +1167,16 @@ export function useTKMindChat(
         setMessageHistoryHasMore(messageHistoryHasMoreRef.current);
         setMessageHistoryTotal(messageHistoryTotalRef.current);
         setMessages(history);
-        const resumed = await resumedPromise;
+        let resumed: Session | null = null;
+        try {
+          resumed = await resumedPromise;
+        } catch (err) {
+          if (!isMissingAgentSessionError(err)) throw err;
+          // Persisted conversation is still readable even when its transient
+          // Agent runtime has been reclaimed. Do not leave a completed chat
+          // in the connecting state or retry resume on future selections.
+          unavailableAgentSessionIdsRef.current.add(sessionId);
+        }
         if (token !== connectTokenRef.current) return;
         setSession({ ...detail, ...(resumed ?? {}), id: sessionId });
         setChatState('idle');
@@ -1383,6 +1399,7 @@ export function useTKMindChat(
         mindspaceContext?: MindSpaceChatContext;
         messageId?: string;
         forceDeepReasoning?: boolean;
+        pgRequired?: boolean;
         selectedChatSkill?: string;
         fileAttachments?: ChatFileAttachment[];
       },
@@ -1412,7 +1429,10 @@ export function useTKMindChat(
         : '';
       const userPrefix = buildUserAddressPrefix(userRef.current);
       const skillPrefix = buildAutoChatSkillPrefix(trimmed, grantedSkills ?? []);
-      const agentPrefix = `${userPrefix}${mindspacePrefix}${skillPrefix}`;
+      const pgContractPrefix = options?.pgRequired
+        ? '[交付约束：用户已明确要求使用专属 PostgreSQL 数据空间。若生成页面，必须按 page-data-collect 完成建表、dataset、policy 和 workspace page 绑定；禁止 localStorage、SQLite、静态 JSON 或内存持久化。所有验证通过前不得回复已发布或给出页面链接。]\n'
+        : '';
+      const agentPrefix = `${userPrefix}${mindspacePrefix}${skillPrefix}${pgContractPrefix}`;
       const priorMessageCount = messagesRef.current.length;
       const userMessage = buildUserMessage(trimmed, {
         id: options?.messageId,
@@ -1429,6 +1449,7 @@ export function useTKMindChat(
             ? userMessage.metadata.memindRun
             : {}),
           sessionMessageCount: priorMessageCount,
+          ...(options?.pgRequired ? { pgRequired: true } : {}),
           ...(options?.selectedChatSkill ? { selectedChatSkill: options.selectedChatSkill } : {}),
         },
       };
@@ -1582,6 +1603,11 @@ export function useTKMindChat(
           const nextChatState = resolvePostAgentRunChatState({
             chatState: chatStateRef.current,
             finishedViaPortalDirectChat,
+            // The agent-run result is authoritative even when the immediate
+            // session snapshot has not yet carried portal-direct metadata.
+            // Without this, a completed Page Data task can re-enter streaming
+            // and leave the Stop button attached to no active request.
+            agentRunSucceeded: finishedRun.status === 'succeeded',
           });
           if (nextChatState === 'idle') {
             clearActiveRequestMissingTimer();