feat: 完成区域管理、装箱功能优化与接口标准化

- 新增区域状态字段与增删改查接口，支持区域启用/停用
- 重构实体字段JSON标签为camelCase格式统一接口规范
- 优化入库、盘点、装箱流程的交互与提示文案
- 新增装箱管理功能，支持合同号关联与装箱编辑
- 调整前端菜单与帮助文档适配业务场景变更

bj_power_wms/internal/handler/zone.go

@@ -21,7 +21,7 @@ func createZoneHandler(ctx *svc.ServiceContext) http.HandlerFunc {
 			return
 		}
 		if req.ZoneCode == "" || req.ZoneName == "" {
-			fail(w, http.StatusBadRequest, "zoneCode 和 zoneName 必填")
+			fail(w, http.StatusBadRequest, "区域编码和区域名称必填")
 			return
 		}
 
@@ -41,6 +41,7 @@ func createZoneHandler(ctx *svc.ServiceContext) http.HandlerFunc {
 			SetZoneCode(req.ZoneCode).
 			SetZoneName(req.ZoneName).
 			SetNillableDescription(strPtr(req.Description)).
+			SetStatus("启用").
 			Save(ctx0())
 		if err != nil {
 			fail(w, http.StatusInternalServerError, err.Error())
@@ -50,10 +51,82 @@ func createZoneHandler(ctx *svc.ServiceContext) http.HandlerFunc {
 	}
 }
 
-// listZonesHandler 区域列表
+// updateZoneHandler 编辑区域
+func updateZoneHandler(ctx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req struct {
+			ID          int    `json:"id"`
+			ZoneCode    string `json:"zoneCode"`
+			ZoneName    string `json:"zoneName"`
+			Description string `json:"description"`
+		}
+		if err := parseJSON(r, &req); err != nil || req.ID <= 0 {
+			fail(w, http.StatusBadRequest, "参数错误")
+			return
+		}
+		if req.ZoneName == "" {
+			fail(w, http.StatusBadRequest, "区域名称必填")
+			return
+		}
+		upd := ctx.EntClient.Zone.UpdateOneID(req.ID).SetZoneName(req.ZoneName)
+		if req.ZoneCode != "" {
+			upd.SetZoneCode(req.ZoneCode)
+		}
+		upd.SetNillableDescription(strPtr(req.Description))
+		z, err := upd.Save(ctx0())
+		if err != nil {
+			fail(w, http.StatusInternalServerError, "更新区域失败: "+err.Error())
+			return
+		}
+		ok(w, z)
+	}
+}
+
+// listZonesHandler 区域列表（分页 + 关键字）
 func listZonesHandler(ctx *svc.ServiceContext) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		list, err := ctx.EntClient.Zone.Query().Order(ent.Desc("id")).All(ctx0())
+		page := atoi(r.URL.Query().Get("page"), 1)
+		pageSize := atoi(r.URL.Query().Get("pageSize"), 20)
+		keyword := r.URL.Query().Get("keyword")
+
+		q := ctx.EntClient.Zone.Query()
+		if keyword != "" {
+			q = q.Where(
+				zone.Or(
+					zone.ZoneCodeContains(keyword),
+					zone.ZoneNameContains(keyword),
+				),
+			)
+		}
+		total, err := q.Count(ctx0())
+		if err != nil {
+			fail(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		list, err := q.Order(ent.Desc("id")).
+			Offset((page - 1) * pageSize).
+			Limit(pageSize).
+			All(ctx0())
+		if err != nil {
+			fail(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		ok(w, map[string]any{
+			"total":    total,
+			"list":     list,
+			"page":     page,
+			"pageSize": pageSize,
+		})
+	}
+}
+
+// listZonesForPicker 区域下拉列表（不分页，仅启用）
+func listZonesForPicker(ctx *svc.ServiceContext) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		list, err := ctx.EntClient.Zone.Query().
+			Where(zone.StatusEQ("启用")).
+			Order(ent.Asc("id")).
+			All(ctx0())
 		if err != nil {
 			fail(w, http.StatusInternalServerError, err.Error())
 			return