fix: resolve P1 backend consistency issues

server/db/mysql/tenant_adapter.go

@@ -7051,15 +7051,17 @@ func (a *adapter) TenantTopicDraftPut(id t.TenantID, uid t.Uid, topic, content s
 			return nil, err
 		}
 		now := t.TimeNow()
-		_, err = a.db.ExecContext(ctx, `INSERT INTO im_topic_drafts
+		res, err := a.db.ExecContext(ctx, `INSERT INTO im_topic_drafts
 			(id,user_id,topic,content,entities_json,version,created_at,updated_at)
 			VALUES(?,?,?,?,?,?,?,?)
-			ON DUPLICATE KEY UPDATE content=VALUES(content),entities_json=VALUES(entities_json),
-				version=version+1,updated_at=VALUES(updated_at)`,
+			ON DUPLICATE KEY UPDATE id=id`,
 			draftID, decodeUID(uid), strings.TrimSpace(topic), content, entities, 1, now, now)
 		if err != nil {
 			return nil, err
 		}
+		if affected, _ := res.RowsAffected(); affected == 0 {
+			return nil, t.ErrInvalidResponse
+		}
 		return a.topicDraftByKey(ctx, uid, strings.TrimSpace(topic))
 	}
 	res, err := a.db.ExecContext(ctx, `UPDATE im_topic_drafts
@@ -9210,6 +9212,13 @@ func (a *adapter) TenantFriendRequestAccept(id t.TenantID, requestID string, act
 		row.HandledAt = &handledAt
 		row.UpdatedAt = handledAt
 	}
+	if _, err = tx.ExecContext(ctx, `UPDATE im_friend_requests SET status=?,handled_at=?,updated_at=?
+		WHERE request_id<>? AND status=? AND
+		((applicant_id=? AND target_id=?) OR (applicant_id=? AND target_id=?))`,
+		t.FriendRequestExpired, handledAt, handledAt, requestID, t.FriendRequestPending,
+		decodeUID(applicant), decodeUID(target), decodeUID(target), decodeUID(applicant)); err != nil {
+		return nil, err
+	}
 	for _, pair := range [][2]t.Uid{{applicant, target}, {target, applicant}} {
 		friendshipID, idErr := nextSnowflakeID()
 		if idErr != nil {