Develop labeling module (#25)

* refactor: remove db table management from LS adapter (mv to scripts later); change adapter to use the same MySQL DB as other modules.

* refactor: Rename LS Adapter module to datamate-python

runtime/datamate-python/app/models/collection/collection_task.py

@@ -0,0 +1,28 @@
+from sqlalchemy import Column, String, Text, Integer, BigInteger, TIMESTAMP
+from sqlalchemy.sql import func
+from app.db.database import Base
+
+class CollectionTask(Base):
+    """数据归集任务模型"""
+    
+    __tablename__ = "t_dc_collection_tasks"
+    
+    id = Column(String(36), primary_key=True, comment="任务ID（UUID）")
+    name = Column(String(255), nullable=False, comment="任务名称")
+    description = Column(Text, nullable=True, comment="任务描述")
+    sync_mode = Column(String(20), default='ONCE', comment="同步模式：ONCE/SCHEDULED")
+    config = Column(Text, nullable=False, comment="归集配置（DataX配置），包含源端和目标端配置信息")
+    schedule_expression = Column(String(255), nullable=True, comment="Cron调度表达式")
+    status = Column(String(20), default='DRAFT', comment="任务状态：DRAFT/READY/RUNNING/SUCCESS/FAILED/STOPPED")
+    retry_count = Column(Integer, default=3, comment="重试次数")
+    timeout_seconds = Column(Integer, default=3600, comment="超时时间（秒）")
+    max_records = Column(BigInteger, nullable=True, comment="最大处理记录数")
+    sort_field = Column(String(100), nullable=True, comment="增量字段")
+    last_execution_id = Column(String(36), nullable=True, comment="最后执行ID（UUID）")
+    created_at = Column(TIMESTAMP, server_default=func.current_timestamp(), comment="创建时间")
+    updated_at = Column(TIMESTAMP, server_default=func.current_timestamp(), onupdate=func.current_timestamp(), comment="更新时间")
+    created_by = Column(String(255), nullable=True, comment="创建者")
+    updated_by = Column(String(255), nullable=True, comment="更新者")
+    
+    def __repr__(self):
+        return f"<CollectionTask(id={self.id}, name={self.name}, status={self.status})>"