智教助手平台：完整初始化

- 前端：Vue3 + TS + Element Plus，24 个页面路由（课件/组题/教案/动画/思维导图/作文批改/命题/课堂/资源/社区等）
- 后端：FastAPI + SQLAlchemy + SQLite，17 个路由模块，AI 服务层含降级模板
- AI：glm-5.x 推理模型已禁用思维链，确保输出真实内容
- 修复：ai_service 两处请求体注入 enable_thinking/thinking disabled
- 测试账号：13900999999 / test1234

backend/models/resource.py

@@ -0,0 +1,46 @@
+from sqlalchemy import Column, Integer, String, Text, DateTime, JSON, ForeignKey, Enum as SAEnum, UniqueConstraint
+from sqlalchemy.orm import relationship
+from sqlalchemy.sql import func
+from database import Base
+
+
+class Resource(Base):
+    __tablename__ = "resources"
+
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+    resource_type = Column(
+        SAEnum("courseware", "animation", "exercise", "lesson_plan", "exam", "other", name="res_type"),
+        default="other",
+    )
+    title = Column(String(200), nullable=False)
+    description = Column(Text, default="")
+    content_ref = Column(String(500), default="")
+    file_url = Column(String(500), default="")
+    cover_image = Column(String(500), default="")
+    tags = Column(JSON, default=list)
+    subject = Column(String(50), default="")
+    grade = Column(String(50), default="")
+    downloads = Column(Integer, default=0)
+    likes = Column(Integer, default=0)
+    views = Column(Integer, default=0)
+    is_public = Column(Integer, default=1)
+    status = Column(SAEnum("active", "archived", name="res_status"), default="active")
+    created_at = Column(DateTime, server_default=func.now())
+    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())
+
+    author = relationship("User", back_populates="resources")
+    favorites = relationship("ResourceFavorite", back_populates="resource", cascade="all, delete-orphan")
+
+
+class ResourceFavorite(Base):
+    __tablename__ = "resource_favorites"
+    __table_args__ = (UniqueConstraint("user_id", "resource_id", name="uq_resource_favorite_user_resource"),)
+
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("users.id"), nullable=False, index=True)
+    resource_id = Column(Integer, ForeignKey("resources.id"), nullable=False, index=True)
+    created_at = Column(DateTime, server_default=func.now())
+
+    user = relationship("User", back_populates="resource_favorites")
+    resource = relationship("Resource", back_populates="favorites")