first commit

backend/app/models/datasource.py

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+"""Data Source model"""
+
+from sqlalchemy import Boolean, Column, DateTime, Integer, String, Text
+from sqlalchemy.sql import func
+
+from app.db.session import Base
+
+
+class DataSource(Base):
+    __tablename__ = "data_sources"
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    name = Column(String(100), nullable=False)
+    source = Column(String(100), nullable=False)
+    module = Column(String(10), nullable=False, index=True)  # L1, L2, L3, L4
+    priority = Column(String(10), default="P1")  # P0, P1, P2
+    frequency_minutes = Column(Integer, default=60)
+    collector_class = Column(String(100), nullable=False)
+    config = Column(Text, default="{}")  # JSON config
+    is_active = Column(Boolean, default=True, index=True)
+    last_run_at = Column(DateTime(timezone=True))
+    last_status = Column(String(20))
+    next_run_at = Column(DateTime(timezone=True))
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
+
+    def __repr__(self):
+        return f"<DataSource {self.id}: {self.name}>"