feat(feishu): add replyInThread configuration for message replies (openclaw#27325) thanks @kcinzgg

Verified:
- pnpm build
- pnpm check
- pnpm test:macmini

Co-authored-by: kcinzgg <13964709+kcinzgg@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

extensions/feishu/src/config-schema.ts

@@ -111,6 +111,16 @@ const GroupSessionScopeSchema = z
  */
 const TopicSessionModeSchema = z.enum(["disabled", "enabled"]).optional();
 
+/**
+ * Reply-in-thread mode for group chats.
+ * - "disabled" (default): Bot replies are normal inline replies
+ * - "enabled": Bot replies create or continue a Feishu topic thread
+ *
+ * When enabled, the Feishu reply API is called with `reply_in_thread: true`,
+ * causing the reply to appear as a topic (话题) under the original message.
+ */
+const ReplyInThreadSchema = z.enum(["disabled", "enabled"]).optional();
+
 export const FeishuGroupSchema = z
   .object({
     requireMention: z.boolean().optional(),
@@ -121,6 +131,7 @@ export const FeishuGroupSchema = z
     systemPrompt: z.string().optional(),
     groupSessionScope: GroupSessionScopeSchema,
     topicSessionMode: TopicSessionModeSchema,
+    replyInThread: ReplyInThreadSchema,
   })
   .strict();
 
@@ -147,6 +158,7 @@ const FeishuSharedConfigShape = {
   renderMode: RenderModeSchema,
   streaming: StreamingModeSchema,
   tools: FeishuToolsConfigSchema,
+  replyInThread: ReplyInThreadSchema,
 };
 
 /**