feat: 龙虾记忆同步系统完整版本

功能特性:
- 文件树展示
- 差异对比
- 双向同步（本地 <-> 数据库）
- 版本历史追踪
- 统计信息展示

核心补丁:
1. 分块读取与流式传输（防止大文件内存飙升）
2. .lobsterignore 机制（排除临时文件）
3. 操作溯源（Audit Log，记录同步历史）

技术栈:
- 后端: Django + DRF + PostgreSQL
- 前端: React + Ant Design
- 部署: Docker + Docker Compose

项目已完整部署，可直接使用 docker-compose up -d 启动

backend/memory_app/serializers.py

@@ -0,0 +1,64 @@
+from rest_framework import serializers
+from .models import LobsterMemory, SyncHistory
+
+
+class LobsterMemorySerializer(serializers.ModelSerializer):
+    """龙虾记忆序列化器"""
+
+    class Meta:
+        model = LobsterMemory
+        fields = [
+            'id',
+            'lobster_id',
+            'file_path',
+            'content',
+            'hash',
+            'status',
+            'version',
+            'size',
+            'created_at',
+            'updated_at',
+        ]
+        read_only_fields = ['id', 'created_at', 'updated_at']
+
+
+class SyncHistorySerializer(serializers.ModelSerializer):
+    """同步历史序列化器"""
+
+    action_display = serializers.CharField(source='get_action_display', read_only=True)
+    status_display = serializers.CharField(source='get_status_display', read_only=True)
+
+    class Meta:
+        model = SyncHistory
+        fields = [
+            'id',
+            'lobster_id',
+            'file_path',
+            'action',
+            'action_display',
+            'status',
+            'status_display',
+            'old_version',
+            'new_version',
+            'old_hash',
+            'new_hash',
+            'file_size',
+            'operator',
+            'error_message',
+            'execution_time',
+            'created_at',
+        ]
+        read_only_fields = ['id', 'created_at']
+
+
+class FileDiffSerializer(serializers.Serializer):
+    """文件差异序列化器"""
+
+    file_path = serializers.CharField()
+    lobster_id = serializers.CharField()
+    local_content = serializers.CharField(required=False)
+    db_content = serializers.CharField(required=False)
+    local_hash = serializers.CharField(required=False)
+    db_hash = serializers.CharField(required=False)
+    status = serializers.CharField()
+    message = serializers.CharField(required=False)