feat: 财务结清、酒行信息、库存备注编辑、标签溯源、入库必填校验

后端
- 新增 shop handler：GET/PUT /shop/info（管理员权限）
- 新增 finance CloseByRef：按单据 ref_type+ref_id 结清账款
- 新增 inventory UpdateRemark：PUT /inventory/:id/remark
- 入库/出库审批自动生成财务应付/应收记录（去除金额>0限制）
- 种子数据 S001-S003 补充真实门店信息

前端
- 设置页新增「酒行信息」Tab，管理员可编辑门店名称/地址/电话/负责人
- 入库单列表新增结清按钮（含确认弹窗），出库单同步
- 入库表单：规格、系列、生产日期、供应商、商品名称改为提交必填
- 入库/出库列表新增入库时间、出库时间、创建时间列
- 商品标签标题改为读取 shop 表门店名，扫码文案改为「扫码溯源 · TRACE」
- 标签页脚显示门店地址和电话（从 API 读取，不再依赖编译时 dart-define）
- 库存备注支持点击编辑，超4字截断显示+Hover展示全文
- ApiClient 新增 patch() 方法（已改用 PUT 规避 CORS）

文档
- 新增 docs/user-manual.md 完整用户操作手册（12章）

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/internal/handler/product_option.go

@@ -51,6 +51,29 @@ func (h *ProductOptionHandler) CreateName(c *gin.Context) {
 	c.JSON(http.StatusCreated, gin.H{"data": item})
 }
 
+func (h *ProductOptionHandler) UpdateName(c *gin.Context) {
+	shopID := middleware.GetShopID(c)
+	var req struct {
+		Code   string `json:"code"`
+		Name   string `json:"name" binding:"required"`
+		Remark string `json:"remark"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	var item model.ProductNameOption
+	if err := h.db.Where("id = ? AND shop_id = ?", c.Param("id"), shopID).First(&item).Error; err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+		return
+	}
+	item.Code = req.Code
+	item.Name = req.Name
+	item.Remark = req.Remark
+	h.db.Save(&item)
+	c.JSON(http.StatusOK, gin.H{"data": item})
+}
+
 func (h *ProductOptionHandler) DeleteName(c *gin.Context) {
 	shopID := middleware.GetShopID(c)
 	h.db.Where("id = ? AND shop_id = ?", c.Param("id"), shopID).Delete(&model.ProductNameOption{})
@@ -90,6 +113,29 @@ func (h *ProductOptionHandler) CreateSeries(c *gin.Context) {
 	c.JSON(http.StatusCreated, gin.H{"data": item})
 }
 
+func (h *ProductOptionHandler) UpdateSeries(c *gin.Context) {
+	shopID := middleware.GetShopID(c)
+	var req struct {
+		Code   string `json:"code"`
+		Name   string `json:"name" binding:"required"`
+		Remark string `json:"remark"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	var item model.ProductSeriesOption
+	if err := h.db.Where("id = ? AND shop_id = ?", c.Param("id"), shopID).First(&item).Error; err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+		return
+	}
+	item.Code = req.Code
+	item.Name = req.Name
+	item.Remark = req.Remark
+	h.db.Save(&item)
+	c.JSON(http.StatusOK, gin.H{"data": item})
+}
+
 func (h *ProductOptionHandler) DeleteSeries(c *gin.Context) {
 	shopID := middleware.GetShopID(c)
 	h.db.Where("id = ? AND shop_id = ?", c.Param("id"), shopID).Delete(&model.ProductSeriesOption{})
@@ -131,6 +177,31 @@ func (h *ProductOptionHandler) CreateSpec(c *gin.Context) {
 	c.JSON(http.StatusCreated, gin.H{"data": item})
 }
 
+func (h *ProductOptionHandler) UpdateSpec(c *gin.Context) {
+	shopID := middleware.GetShopID(c)
+	var req struct {
+		Code     string `json:"code"`
+		Name     string `json:"name" binding:"required"`
+		Quantity int    `json:"quantity"`
+		Remark   string `json:"remark"`
+	}
+	if err := c.ShouldBindJSON(&req); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+	var item model.ProductSpecOption
+	if err := h.db.Where("id = ? AND shop_id = ?", c.Param("id"), shopID).First(&item).Error; err != nil {
+		c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+		return
+	}
+	item.Code = req.Code
+	item.Name = req.Name
+	item.Quantity = req.Quantity
+	item.Remark = req.Remark
+	h.db.Save(&item)
+	c.JSON(http.StatusOK, gin.H{"data": item})
+}
+
 func (h *ProductOptionHandler) DeleteSpec(c *gin.Context) {
 	shopID := middleware.GetShopID(c)
 	h.db.Where("id = ? AND shop_id = ?", c.Param("id"), shopID).Delete(&model.ProductSpecOption{})