v0.2.0: CRM/ERP 系统升级 - 清理 .gitignore 并移除误提交的 venv/env/db 文件

- 更新 .gitignore：全面覆盖环境变量、数据库、日志、缓存、上传文件
- 移除误跟踪的 server/venv/、crm_data.db、.env 文件
- 新增 server/.env.example 模板
- 新增合同管理、利润核算、AI教练等功能模块
- 新增 Playwright e2e 测试套件
- 前后端多项功能升级和 bug 修复

server/tests/api/test_orders.py

@@ -0,0 +1,104 @@
+"""
+订单管理模块测试 —— /api/orders
+覆盖: 创建订单 / 列表 / 详情 / 动态定价 / 收款 / 订单发票关联
+"""
+import uuid
+import pytest
+from httpx import AsyncClient
+from tests.conftest import (
+    make_auth_headers, ADMIN_USER_ID, SALES_USER_ID,
+    COMPANY_ID, CUSTOMER_ID, SKU_ID,
+)
+
+
+class TestCreateOrder:
+    """POST /api/orders"""
+
+    async def test_create_order_success(self, client: AsyncClient, admin_headers):
+        """创建含 1 个明细行的订单 → 200"""
+        resp = await client.post("/api/orders", headers=admin_headers, json={
+            "customer_id": str(CUSTOMER_ID),
+            "items": [
+                {"sku_id": str(SKU_ID), "qty": 10, "unit_price": 280.00}
+            ],
+            "remark": "测试订单",
+            "order_date": "2026-03-30"
+        })
+        assert resp.status_code == 200
+        data = resp.json()["data"]
+        assert "order_no" in data
+        assert float(data["total_amount"]) == 2800.00
+
+    async def test_create_order_no_items(self, client: AsyncClient, admin_headers):
+        """空明细 → 应失败（422 或 400）"""
+        resp = await client.post("/api/orders", headers=admin_headers, json={
+            "customer_id": str(CUSTOMER_ID),
+            "items": []
+        })
+        assert resp.status_code in (400, 422)
+
+    async def test_create_order_no_company_header(self, client: AsyncClient, seed_data):
+        """缺少 X-Company-Id → 422"""
+        headers = {"Authorization": f"Bearer {make_auth_headers(ADMIN_USER_ID)['Authorization'].split(' ')[1]}"}
+        resp = await client.post("/api/orders", headers=headers, json={
+            "customer_id": str(CUSTOMER_ID),
+            "items": [{"sku_id": str(SKU_ID), "qty": 1, "unit_price": 280}]
+        })
+        assert resp.status_code == 422
+
+
+class TestListOrders:
+    """GET /api/orders"""
+
+    async def test_list_orders_empty(self, client: AsyncClient, admin_headers):
+        """无订单时 → 200 + total=0"""
+        resp = await client.get("/api/orders", headers=admin_headers)
+        assert resp.status_code == 200
+        data = resp.json()["data"]
+        assert data["total"] >= 0
+
+    async def test_list_orders_with_filters(self, client: AsyncClient, admin_headers):
+        """带筛选条件 → 200"""
+        resp = await client.get(
+            "/api/orders?shipping_state=pending&payment_state=unpaid",
+            headers=admin_headers
+        )
+        assert resp.status_code == 200
+
+
+class TestOrderDetail:
+    """GET /api/orders/{id}"""
+
+    async def test_get_nonexistent_order(self, client: AsyncClient, admin_headers):
+        """不存在的订单 → 404"""
+        fake_id = uuid.uuid4()
+        resp = await client.get(f"/api/orders/{fake_id}", headers=admin_headers)
+        assert resp.status_code == 404
+
+
+class TestCalculatePrice:
+    """GET /api/orders/price/calculate"""
+
+    async def test_calculate_price(self, client: AsyncClient, admin_headers):
+        """动态定价查询 → 200"""
+        resp = await client.get(
+            f"/api/orders/price/calculate?customer_id={CUSTOMER_ID}&sku_id={SKU_ID}",
+            headers=admin_headers
+        )
+        assert resp.status_code == 200
+        data = resp.json()["data"]
+        assert "price" in data or "standard_price" in data or "unit_price" in data
+
+
+class TestOrderPayment:
+    """PUT /api/orders/{id}/payment"""
+
+    async def test_update_payment_nonexistent(self, client: AsyncClient, admin_headers):
+        """不存在的订单更新收款 → 404"""
+        fake_id = uuid.uuid4()
+        resp = await client.put(
+            f"/api/orders/{fake_id}/payment",
+            headers=admin_headers,
+            json={"paid_amount": 1000}
+        )
+        assert resp.status_code == 404