初始提交：项目基础结构

- backend: FastAPI 后端服务 (Python)
- frontend: React + Tauri 前端应用
- docker-compose.yml: 容器编排配置

backend/app/__init__.py

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+# Track Production API

backend/app/api/v1/router.py

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+from fastapi import APIRouter
+
+api_router = APIRouter()
+
+# 后续在此注册子路由
+# from app.api.v1 import users, products, orders, ...
+# api_router.include_router(users.router, prefix="/users", tags=["用户管理"])

backend/app/core/config.py

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+"""核心配置 — Pydantic Settings 自动从 .env 读取"""
+import json
+from pydantic_settings import BaseSettings
+
+
+class Settings(BaseSettings):
+    # ---- 数据库 ----
+    DATABASE_URL: str = "postgresql+asyncpg://track:track_prod_2026@localhost:5433/track_production"
+
+    # ---- JWT ----
+    SECRET_KEY: str = "change-me-in-production"
+    ACCESS_TOKEN_EXPIRE_MINUTES: int = 30
+
+    # ---- 调试 ----
+    DEBUG: bool = True
+
+    # ---- CORS 跨域白名单（JSON 数组字符串，直接从 .env 的 CORS_ORIGINS 读取） ----
+    CORS_ORIGINS: str = '["http://localhost:1420", "tauri://localhost"]'
+
+    @property
+    def CORS_ORIGINS_LIST(self) -> list[str]:
+        """将 JSON 字符串解析为 Python list，供 CORSMiddleware 使用"""
+        try:
+            return json.loads(self.CORS_ORIGINS)
+        except (json.JSONDecodeError, TypeError):
+            return ["http://localhost:1420", "tauri://localhost"]
+
+    class Config:
+        env_file = ".env"
+        extra = "ignore"
+
+
+settings = Settings()

backend/app/core/database.py

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+"""数据库连接 — 异步引擎 + 连接池"""
+from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession
+from app.core.config import settings
+
+engine = create_async_engine(
+    settings.DATABASE_URL,
+    echo=settings.DEBUG,
+    pool_size=20,         # 连接池常驻连接数
+    max_overflow=10,      # 超出 pool_size 时最多再创建的连接数
+    pool_recycle=3600,    # 连接回收时间（秒），防止 MySQL 8 小时断连
+    pool_pre_ping=True,   # 每次取出连接前先 ping 检测可用性
+)
+
+AsyncSessionLocal = async_sessionmaker(
+    engine,
+    class_=AsyncSession,
+    expire_on_commit=False,
+)
+
+
+async def get_db() -> AsyncSession:
+    """FastAPI 依赖注入：每次请求获取一个数据库会话"""
+    async with AsyncSessionLocal() as session:
+        yield session

backend/app/core/security.py

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+"""安全模块 — JWT Token 生成与验证"""
+from datetime import datetime, timedelta, timezone
+from jose import JWTError, jwt
+from passlib.context import CryptContext
+from app.core.config import settings
+
+pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+
+ALGORITHM = "HS256"
+
+
+def create_access_token(data: dict, expires_delta: timedelta | None = None) -> str:
+    """生成 JWT Access Token"""
+    to_encode = data.copy()
+    expire = datetime.now(timezone.utc) + (
+        expires_delta or timedelta(minutes=settings.ACCESS_TOKEN_EXPIRE_MINUTES)
+    )
+    to_encode.update({"exp": expire})
+    return jwt.encode(to_encode, settings.SECRET_KEY, algorithm=ALGORITHM)
+
+
+def verify_password(plain_password: str, hashed_password: str) -> bool:
+    """验证明文密码 vs 哈希密码"""
+    return pwd_context.verify(plain_password, hashed_password)
+
+
+def hash_password(password: str) -> str:
+    """对明文密码进行哈希"""
+    return pwd_context.hash(password)

backend/app/main.py

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+from contextlib import asynccontextmanager
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from app.core.config import settings
+from app.api.v1.router import api_router
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    """应用生命周期：启动时初始化连接，关闭时释放资源"""
+    # 启动：验证数据库连接等
+    yield
+    # 关闭：清理资源
+
+
+app = FastAPI(
+    title="Track Production API",
+    description="工厂生产流转管理系统 API",
+    version="0.1.0",
+    lifespan=lifespan,
+)
+
+# ---- CORS 跨域配置（从环境变量读取白名单） ----
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=settings.CORS_ORIGINS_LIST,
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# ---- 注册路由 ----
+app.include_router(api_router, prefix="/api/v1")
+
+
+@app.get("/health")
+async def health_check():
+    return {"status": "ok", "version": "0.1.0"}

backend/app/models/__init__.py

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+"""模型包 — 导入 Base 及所有模型，供 Alembic 自动发现"""
+from app.models.base import Base
+from app.models.production_order import ProductionOrder
+from app.models.product import Product
+from app.models.task import Task
+from app.models.task_log import TaskLog
+
+__all__ = [
+    "Base",
+    "ProductionOrder",
+    "Product",
+    "Task",
+    "TaskLog",
+]

backend/app/models/base.py

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+"""SQLAlchemy 声明式基类"""
+from sqlalchemy.orm import DeclarativeBase
+
+
+class Base(DeclarativeBase):
+    pass

backend/app/models/product.py

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+"""产品模型"""
+import uuid
+from datetime import datetime, timezone
+from sqlalchemy import String, DateTime, ForeignKey
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.models.base import Base
+
+
+class Product(Base):
+    __tablename__ = "products"
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4,
+    )
+    serial_number: Mapped[str] = mapped_column(
+        String(16), unique=True, index=True, nullable=False, comment="产品序列号(16位)",
+    )
+
+    # ---- 物理外键（关联本库 production_orders） ----
+    order_id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("production_orders.id"), nullable=False, comment="所属订单ID",
+    )
+
+    # ---- 逻辑外键（关联老系统物料表，仅存储 ID，无物理约束） ----
+    material_id: Mapped[str | None] = mapped_column(
+        String(64), nullable=True, comment="物料ID(逻辑外键→老系统)",
+    )
+
+    # ---- 物理外键（自引用：父产品） ----
+    parent_product_id: Mapped[uuid.UUID | None] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("products.id"), nullable=True, comment="父产品ID",
+    )
+
+    status: Mapped[str] = mapped_column(
+        String(50), nullable=False, default="pending", comment="产品状态",
+    )
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=lambda: datetime.now(timezone.utc), comment="创建时间",
+    )
+
+    # ---- 关系 ----
+    order: Mapped["ProductionOrder"] = relationship("ProductionOrder", lazy="selectin")
+    parent_product: Mapped["Product | None"] = relationship(
+        "Product", remote_side="Product.id", lazy="selectin",
+    )
+
+    def __repr__(self) -> str:
+        return f"<Product {self.serial_number}>"

backend/app/models/production_order.py

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+"""生产订单模型"""
+import uuid
+from datetime import datetime, timezone
+from sqlalchemy import String, DateTime
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.models.base import Base
+
+
+class ProductionOrder(Base):
+    __tablename__ = "production_orders"
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4,
+    )
+    order_no: Mapped[str] = mapped_column(
+        String(64), unique=True, index=True, nullable=False, comment="订单编号",
+    )
+    customer_info: Mapped[str | None] = mapped_column(
+        String(500), nullable=True, comment="客户信息",
+    )
+    status: Mapped[str] = mapped_column(
+        String(50), nullable=False, default="pending", comment="订单状态",
+    )
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=lambda: datetime.now(timezone.utc), comment="创建时间",
+    )
+
+    def __repr__(self) -> str:
+        return f"<ProductionOrder {self.order_no}>"

backend/app/models/task.py

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+"""任务模型 — 支持无限嵌套"""
+import uuid
+from datetime import datetime, timezone
+from sqlalchemy import String, DateTime, Boolean, ForeignKey
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.models.base import Base
+
+
+class Task(Base):
+    __tablename__ = "tasks"
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4,
+    )
+
+    # ---- 物理外键（关联本库 products） ----
+    product_id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("products.id"), nullable=False, comment="所属产品ID",
+    )
+
+    # ---- 物理外键（自引用：无限嵌套父子任务） ----
+    parent_task_id: Mapped[uuid.UUID | None] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("tasks.id"), nullable=True, index=True, comment="父任务ID",
+    )
+
+    task_name: Mapped[str] = mapped_column(
+        String(200), nullable=False, comment="任务名称",
+    )
+
+    # ---- 逻辑外键（关联老系统用户表，仅存储 ID，无物理约束） ----
+    assignee_id: Mapped[str | None] = mapped_column(
+        String(64), nullable=True, comment="负责人ID(逻辑外键→老系统)",
+    )
+
+    status: Mapped[str] = mapped_column(
+        String(50), nullable=False, default="pending", comment="任务状态",
+    )
+
+    notify_parent_on_complete: Mapped[bool] = mapped_column(
+        Boolean, default=False, comment="完成后是否通知父任务",
+    )
+
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=lambda: datetime.now(timezone.utc), comment="创建时间",
+    )
+
+    # ---- 关系 ----
+    product: Mapped["Product"] = relationship("Product", lazy="selectin")
+    parent_task: Mapped["Task | None"] = relationship(
+        "Task", remote_side="Task.id", back_populates="child_tasks", lazy="selectin",
+    )
+    child_tasks: Mapped[list["Task"]] = relationship(
+        "Task", back_populates="parent_task", lazy="selectin",
+    )
+
+    def __repr__(self) -> str:
+        return f"<Task {self.task_name}>"

backend/app/models/task_log.py

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+"""任务操作日志模型"""
+import uuid
+from datetime import datetime, timezone
+from sqlalchemy import String, DateTime, ForeignKey, Text
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.models.base import Base
+
+
+class TaskLog(Base):
+    __tablename__ = "task_logs"
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4,
+    )
+
+    # ---- 物理外键（关联本库 tasks） ----
+    task_id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("tasks.id"), nullable=False, index=True, comment="所属任务ID",
+    )
+
+    # ---- 逻辑外键（关联老系统用户表，仅存储 ID，无物理约束） ----
+    operator_id: Mapped[str | None] = mapped_column(
+        String(64), nullable=True, comment="操作人ID(逻辑外键→老系统)",
+    )
+
+    action_type: Mapped[str] = mapped_column(
+        String(50), nullable=False, comment="操作类型",
+    )
+
+    remark: Mapped[str | None] = mapped_column(
+        Text, nullable=True, comment="备注",
+    )
+
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=lambda: datetime.now(timezone.utc), comment="创建时间",
+    )
+
+    # ---- 关系 ----
+    task: Mapped["Task"] = relationship("Task", lazy="selectin")
+
+    def __repr__(self) -> str:
+        return f"<TaskLog {self.action_type} @ {self.created_at}>"