feat:增加知识库数据接口

models/library.py

@@ -0,0 +1,33 @@
+from sqlalchemy import Column, BigInteger, String, Text, TIMESTAMP, Integer, ForeignKey
+from sqlalchemy.dialects.postgresql import JSONB
+from sqlalchemy.orm import relationship
+
+from models.base import AuditBase
+
+
+class LibraryFile(AuditBase):
+    subject = Column(String(45), nullable=False)
+    module = Column(String(45), nullable=False)
+    name = Column(String(45), nullable=False)
+    type = Column(String(45), nullable=False)
+    size = Column(Integer, nullable=False)
+
+    questions = relationship(
+        "LibraryFileQuestion",
+        back_populates="library_file",
+        cascade="all, delete-orphan"
+    )
+
+
+class LibraryFileQuestion(AuditBase):
+    library_file_id = Column(BigInteger, ForeignKey("library_file.id"), nullable=False)
+
+    type = Column(String(45), nullable=False)
+    question = Column(Text, nullable=False)
+    options = Column(JSONB, nullable=False)
+    answer = Column(JSONB, nullable=False)
+
+    library_file = relationship(
+        "LibraryFile",
+        back_populates="questions"
+    )