fix: harden typing lifecycle and cross-channel suppression

extensions/feishu/src/bot.ts

@@ -943,27 +943,33 @@ export async function handleFeishuMessage(params: {
     });
 
     log(`feishu[${account.accountId}]: dispatching to agent (session=${route.sessionKey})`);
-
-    const { queuedFinal, counts } = await core.channel.reply.dispatchReplyFromConfig({
-      ctx: ctxPayload,
-      cfg,
-      dispatcher,
-      replyOptions,
-    });
-
-    markDispatchIdle();
-
-    if (isGroup && historyKey && chatHistories) {
-      clearHistoryEntriesIfEnabled({
-        historyMap: chatHistories,
-        historyKey,
-        limit: historyLimit,
+    try {
+      const { queuedFinal, counts } = await core.channel.reply.dispatchReplyFromConfig({
+        ctx: ctxPayload,
+        cfg,
+        dispatcher,
+        replyOptions,
       });
-    }
 
-    log(
-      `feishu[${account.accountId}]: dispatch complete (queuedFinal=${queuedFinal}, replies=${counts.final})`,
-    );
+      if (isGroup && historyKey && chatHistories) {
+        clearHistoryEntriesIfEnabled({
+          historyMap: chatHistories,
+          historyKey,
+          limit: historyLimit,
+        });
+      }
+
+      log(
+        `feishu[${account.accountId}]: dispatch complete (queuedFinal=${queuedFinal}, replies=${counts.final})`,
+      );
+    } finally {
+      dispatcher.markComplete();
+      try {
+        await dispatcher.waitForIdle();
+      } finally {
+        markDispatchIdle();
+      }
+    }
   } catch (err) {
     error(`feishu[${account.accountId}]: failed to dispatch message: ${String(err)}`);
   }