[backend] feat: 添加用户和项目数据模型

backend/src/models/__init__.py

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+# backend/src/models/__init__.py
+from .user import User
+from .project import Project
+
+__all__ = ["User", "Project"]

backend/src/models/project.py

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+# backend/src/models/project.py
+from sqlalchemy import Column, Integer, String, Text, Date, Numeric, DateTime, Enum
+from sqlalchemy.sql import func
+from config.database import Base
+
+
+class Project(Base):
+    __tablename__ = "projects"
+
+    id = Column(Integer, primary_key=True, autoincrement=True, comment="项目ID")
+
+    # 基础信息
+    project_no = Column(String(50), unique=True, nullable=False, comment="合同编号")
+    power_contract_no = Column(String(100), comment="供电局项目合同编号")
+    name = Column(String(200), nullable=False, comment="项目名称")
+    subitem_count = Column(Integer, default=0, comment="子项个数")
+    subitem_code = Column(String(50), comment="子项编码")
+    total_investment = Column(Numeric(15, 2), comment="项目总投资（万元）")
+    contract_amount = Column(Numeric(15, 2), comment="中标合同金额（万元）")
+    warranty_ratio = Column(Numeric(5, 2), comment="质保金比例")
+    settlement_amount = Column(Numeric(15, 2), comment="结算金额（万元）")
+    total_cost_estimated = Column(Numeric(15, 2), comment="总成本测算")
+    voltage_level = Column(String(50), comment="工程电压等级")
+    engineering_type = Column(String(50), comment="工程类别")
+    owner_unit = Column(String(200), comment="业主单位")
+    owner_contact = Column(String(200), comment="业主联系人及电话")
+    bidding_type = Column(String(50), comment="中标形式")
+    signing_date = Column(Date, comment="签订日期")
+    start_date = Column(Date, comment="开工日期")
+    planned_end_date = Column(Date, comment="计划竣工日期")
+    actual_end_date = Column(Date, comment="实际竣工日期")
+
+    # 质保信息
+    warranty_amount = Column(Numeric(15, 2), default=0, comment="质保金（万元）")
+    warranty_expiry_date = Column(Date, comment="质保期截止日")
+    actual_warranty_refund_date = Column(Date, comment="实际退质保金日期")
+
+    # 项目信息
+    project_department = Column(String(100), comment="所属项目部")
+    project_leader = Column(String(200), comment="项目负责人及电话")
+    payment_method = Column(Text, comment="工程款拨付方式")
+
+    # 成本控制
+    total_cost_control = Column(Numeric(15, 2), comment="总体成本（控制）")
+    is_adjusted = Column(Enum("是", "否"), default="否", comment="是否调整")
+    labor_cost_control = Column(Numeric(15, 2), comment="人工成本（控制）")
+    labor_cost_planned = Column(Numeric(15, 2), comment="农民工工资（计划）")
+    labor_cost_paid = Column(Numeric(15, 2), comment="农民工工资（实付）")
+    material_cost_control = Column(Numeric(15, 2), comment="乙供材料费（控制）")
+    material_cost_payable = Column(Numeric(15, 2), comment="应付材料费")
+    material_cost_actual = Column(Numeric(15, 2), comment="实际发生材料费")
+    material_cost_paid = Column(Numeric(15, 2), comment="实际支付材料费")
+    other_cost_control = Column(Numeric(15, 2), comment="其他费用（控制）")
+    other_cost_payable = Column(Numeric(15, 2), comment="应付其他费")
+    other_cost_actual = Column(Numeric(15, 2), comment="实际其他费用")
+
+    # 财务信息
+    tax_amount = Column(Numeric(15, 2), comment="税金")
+    profit = Column(Numeric(15, 2), comment="利润（万元）")
+    actual_profit = Column(Numeric(15, 2), comment="实际利润（万元）")
+    cost_settlement_amount = Column(Numeric(15, 2), comment="成本结算金额（万元）")
+    cumulative_progress = Column(Numeric(5, 2), comment="累计进度")
+    receivable_amount = Column(Numeric(15, 2), comment="应收款（完成进度款）")
+    invoice_amount = Column(Numeric(15, 2), comment="开票金额（万元）")
+    actual_receipt_amount = Column(Numeric(15, 2), comment="实际收款金额（万元）")
+    receipt_completion_rate = Column(Numeric(5, 2), comment="实际收款完成率")
+    payable_amount = Column(Numeric(15, 2), comment="应付款金额（万元）")
+    actual_payment_amount = Column(Numeric(15, 2), comment="实际付款金额（万元）")
+    unpaid_amount = Column(Numeric(15, 2), comment="未收款（万元）")
+    payment_completion_rate = Column(Numeric(5, 2), comment="实际付款完成率")
+
+    # 民工工资
+    labor_debt_amount = Column(Numeric(15, 2), comment="民工工资清欠金额（万元）")
+
+    # 结算信息
+    settlement_cost_amount = Column(Numeric(15, 2), comment="结算后成本测算金额")
+    settlement_labor_cost = Column(Numeric(15, 2), comment="结算人工费")
+    settlement_material_cost = Column(Numeric(15, 2), comment="结算材料费")
+    settlement_other_cost = Column(Numeric(15, 2), comment="结算其他费")
+
+    # 统计信息
+    due_settlement_count = Column(Integer, comment="到期应结算项目个数")
+    unsettlement_count = Column(Integer, comment="到期未完成结算个数")
+
+    # 其他
+    problems = Column(Text, comment="存在的问题")
+    suggestions = Column(Text, comment="建议措施")
+    remarks = Column(Text, comment="备注")
+
+    # 系统字段
+    created_by = Column(Integer, nullable=False, comment="创建人ID")
+    created_at = Column(
+        DateTime,
+        server_default=func.now(),
+        comment="创建时间",
+    )
+    updated_at = Column(
+        DateTime,
+        server_default=func.now(),
+        onupdate=func.now(),
+        comment="更新时间",
+    )

backend/src/models/user.py

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+# backend/src/models/user.py
+from sqlalchemy import Column, Integer, String, Boolean, DateTime, Enum
+from sqlalchemy.sql import func
+from config.database import Base
+
+
+class User(Base):
+    __tablename__ = "users"
+
+    id = Column(Integer, primary_key=True, autoincrement=True, comment="用户ID")
+    username = Column(String(50), unique=True, nullable=False, comment="用户名")
+    password_hash = Column(String(255), nullable=False, comment="密码哈希")
+    real_name = Column(String(100), nullable=False, comment="真实姓名")
+    department = Column(String(50), nullable=False, comment="部门")
+    role = Column(Enum("admin", "market", "other"), nullable=False, comment="角色")
+    email = Column(String(100), unique=True, comment="邮箱")
+    phone = Column(String(20), comment="电话")
+    is_active = Column(Boolean, default=True, comment="是否激活")
+    created_at = Column(
+        DateTime,
+        server_default=func.now(),
+        comment="创建时间",
+    )
+    updated_at = Column(
+        DateTime,
+        server_default=func.now(),
+        onupdate=func.now(),
+        comment="更新时间",
+    )