Initial commit - DesignerCEP Project with Caddy deployment

Server/app/models/group.py

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+from sqlalchemy import Column, Integer, String, Text
+from sqlalchemy.orm import relationship
+from app.db import Base
+
+class PluginGroup(Base):
+    __tablename__ = "plugin_groups"
+
+    id = Column(Integer, primary_key=True, index=True)
+    name = Column(String(64), unique=True, index=True, nullable=False)
+    current_version_file = Column(String(255), nullable=True)  # Name of the zip file
+    comment = Column(Text, nullable=True)
+
+    users = relationship("User", back_populates="group")

Server/app/models/session.py

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+from sqlalchemy import Column, Integer, String, DateTime, Boolean, ForeignKey, func
+from sqlalchemy.orm import relationship
+from app.db import Base
+
+class UserSession(Base):
+    # 用户会话表，用于限制单设备同时在线
+    __tablename__ = "user_sessions"
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("users.id"), nullable=False, index=True)
+    device_id = Column(String(128), nullable=False, index=True)  # 设备标识（前端提供）
+    active = Column(Boolean, default=True, nullable=False)       # 是否处于活跃登录状态
+    expires_at = Column(DateTime(timezone=True), nullable=True)  # 过期时间（与令牌一致）
+    created_at = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
+    login_at = Column(DateTime(timezone=True), nullable=True)    # 登录时间
+    logout_at = Column(DateTime(timezone=True), nullable=True)   # 登出时间
+    duration_seconds = Column(Integer, nullable=True)            # 在线时长（秒）
+    last_seen_at = Column(DateTime(timezone=True), nullable=True) # 最近心跳时间（用于统计活跃时长）
+
+    user = relationship("User")

Server/app/models/user.py

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+from sqlalchemy import Column, Integer, String, DateTime, func, ForeignKey, Text, Boolean
+from sqlalchemy.orm import relationship
+from app.db import Base
+
+class User(Base):
+    # 用户表定义
+    __tablename__ = "users"
+    id = Column(Integer, primary_key=True, index=True)
+    username = Column(String(64), unique=True, index=True, nullable=False)  # 用户名唯一
+    hashed_password = Column(String(128), nullable=False)  # 加密后的密码
+    created_at = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)  # 创建时间
+    
+    group_id = Column(Integer, ForeignKey("plugin_groups.id"), nullable=True)
+    permissions = Column(Text, nullable=True) # Comma separated permissions
+    expire_date = Column(DateTime(timezone=True), nullable=True)
+
+    # Email & Verification
+    email = Column(String(255), unique=True, index=True, nullable=True)
+    is_verified = Column(Boolean, default=False)
+    verification_code = Column(String(6), nullable=True)
+    
+    # Password Reset
+    reset_token = Column(String(128), nullable=True)
+    reset_token_expire = Column(DateTime(timezone=True), nullable=True)
+
+    group = relationship("PluginGroup", back_populates="users")