fix: 统一供应商类型字段标签和SQL映射逻辑

修改order.is_inner和merchant.third_party字段的标签为"供应商类型"
添加SQL构建逻辑将is_inner和third_party字段值映射为"内部供应商"或"外部供应商"

server/internal/api/metadata.go

@@ -411,7 +411,7 @@ func ymtMetadataTables() []tableInfo {
 				{Key: "merchant.merchant_no", Field: "merchant_no", Label: "商户编码", Hidden: false},
 				{Key: "merchant.name", Field: "name", Label: "客户名称", Hidden: false},
 				{Key: "merchant.subject", Field: "subject", Label: "客户主体", Hidden: false},
-				{Key: "merchant.third_party", Field: "third_party", Label: "客户类型", Hidden: false},
+				{Key: "merchant.third_party", Field: "third_party", Label: "供应商类型", Hidden: false},
 				{Key: "merchant.status", Field: "status", Label: "状态 1:正常 2:冻结", Hidden: true},
 				{Key: "merchant.balance", Field: "balance", Label: "分销商余额", Hidden: true},
 				{Key: "merchant.total_consumption", Field: "total_consumption", Label: "累计消费", Hidden: true},
@@ -448,7 +448,7 @@ func ymtMetadataTables() []tableInfo {
 				{Key: "order.num", Field: "num", Label: "购买数量", Hidden: false},
 				{Key: "order.pay_status", Field: "pay_status", Label: "支付状态", Hidden: false},
 				{Key: "order.supplier_product_name", Field: "supplier_product_name", Label: "供应商产品名称", Hidden: false},
-                {Key: "order.key_batch_id", Field: "key_batch_id", Label: "key批次", Hidden: true},
+				{Key: "order.key_batch_id", Field: "key_batch_id", Label: "key批次", Hidden: true},
 				{Key: "order.is_inner", Field: "is_inner", Label: "是否内部供应商订单", Hidden: false},
 				{Key: "order.icon", Field: "icon", Label: "订单图片", Hidden: false},
 				{Key: "order.cost_price", Field: "cost_price", Label: "成本单价", Hidden: false},

server/internal/exporter/sqlbuilder.go

@@ -103,6 +103,10 @@ func BuildSQL(req BuildRequest, whitelist map[string]bool) (string, []interface{
 				cols = append(cols, "'' AS `order.supplier_name`")
 				continue
 			}
+			if f == "is_inner" {
+				cols = append(cols, "CASE `"+mt+"`.is_inner WHEN 1 THEN '内部供应商' ELSE '外部供应商' END AS `order.is_inner`")
+				continue
+			}
 		}
 		if req.Datasource == "ymt" && t == "activity" {
 			if f == "settlement_type" {
@@ -110,6 +114,17 @@ func BuildSQL(req BuildRequest, whitelist map[string]bool) (string, []interface{
 				continue
 			}
 		}
+		if t == "merchant" {
+			if f == "third_party" {
+				cols = append(cols, "CASE `"+mt+"`.third_party WHEN 1 THEN '外部供应商' WHEN 2 THEN '内部供应商' ELSE '' END AS `merchant.third_party`")
+				continue
+			}
+		}
+		// Generic mapping for order.is_inner across datasources
+		if t == "order" && f == "is_inner" {
+			cols = append(cols, "CASE `"+mt+"`.is_inner WHEN 1 THEN '内部供应商' ELSE '外部供应商' END AS `order.is_inner`")
+			continue
+		}
 		if req.Datasource == "ymt" && t == "order_digit" {
 			if f == "order_type" {
 				cols = append(cols, "CASE `"+mt+"`.order_type WHEN 1 THEN '直充' WHEN 2 THEN '卡密' ELSE '' END AS `order_digit.order_type`")

server/internal/schema/fields.go

@@ -262,7 +262,7 @@ func AllLabels() map[string]string {
 		"order.card_code":                          "卡密(脱敏)",
         "order.supplier_product_name":              "供应商产品名称",
         "order.supplier_name":                      "供应商名称",
-		"order.is_inner":                           "内部供应商订单",
+        "order.is_inner":                           "供应商类型",
 		"order.icon":                               "订单图片",
 		"order.cost_price":                         "成本价",
 		"order.success_num":                        "到账数量",
@@ -401,7 +401,7 @@ func AllLabels() map[string]string {
 		"merchant.user_id":                         "用户中心ID",
 		"merchant.merchant_no":                     "商户编码",
 		"merchant.subject":                         "客户主体",
-		"merchant.third_party":                     "来源类型",
+		"merchant.third_party":                     "供应商类型",
 		"merchant.status":                          "状态",
 		"merchant.balance":                         "客户余额",
 		"merchant.total_consumption":               "累计消费",