feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/domain/search/entity/project_event.go

@@ -0,0 +1,37 @@
+/*
+ * 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 entity
+
+type OpType string
+
+const (
+	Created OpType = "created"
+	Updated OpType = "updated"
+	Deleted OpType = "deleted"
+)
+
+type ProjectDomainEvent struct {
+	OpType  OpType           `json:"op_type"`
+	Project *ProjectDocument `json:"project_document,omitempty"`
+	Meta    *EventMeta       `json:"meta,omitempty"`
+	Extra   map[string]any   `json:"extra"`
+}
+
+type EventMeta struct {
+	SendTimeMs    int64 `json:"send_time_ms"`
+	ReceiveTimeMs int64 `json:"receive_time_ms"`
+}