feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/domain/knowledge/internal/consts/consts.go

@@ -0,0 +1,29 @@
+/*
+ * 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.
+ */
+
+package consts
+
+const (
+	// RDBFieldID primary key id
+	RDBFieldID             = "_knowledge_document_slice_id"
+	KnowledgeName          = "knowledge_name"
+	DocumentURL            = "document_url"
+	DefaultChunkSize       = 800
+	DefaultSeparator       = "\n"
+	DefaultOverlap         = 10
+	DefaultTrimSpace       = false
+	DefaultTrimURLAndEmail = false
+)