feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

frontend/packages/data/knowledge/knowledge-resource-processor-base/src/constants/common.ts

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+ 
+export const SUCCESSFUL_UPLOAD_PROGRESS = 100;
+
+export const POLLING_TIME = 3000;
+
+export const MAX_UNIT_NAME_LEN = 100;
+
+export const BOT_DATA_REFACTOR_CLASS_NAME = 'data-refactor';
+
+export const TABLE_ACCEPT_LOCAL_FILE = ['.xls', '.xlsx', '.csv'];
+
+interface TextUploadChannelConfig {
+  acceptFileTypes: string[];
+  fileFormatString: string;
+  addUnitMaxLimit: number;
+}
+
+export type Channel = 'DOUYIN' | 'DEFAULT';
+
+const textUploadChannelConfigMap: Record<Channel, TextUploadChannelConfig> = {
+  DOUYIN: {
+    acceptFileTypes: ['.pdf', '.txt', '.doc', '.docx'],
+    fileFormatString: 'PDF、TXT、DOC、DOCX',
+    addUnitMaxLimit: 100,
+  },
+  DEFAULT: {
+    acceptFileTypes: ['.pdf', '.txt', '.doc', '.docx', '.md'],
+    fileFormatString: 'PDF、TXT、DOC、DOCX、MD',
+    addUnitMaxLimit: 300,
+  },
+};
+
+export const getTextUploadChannelConfig = (
+  channel?: Channel,
+): TextUploadChannelConfig =>
+  (channel && textUploadChannelConfigMap[channel]) ||
+  textUploadChannelConfigMap.DEFAULT;