refactor: 替换多页面国际化文本为硬编码中文内容

移除项目内大部分$lang()国际化调用，替换为直接中文文本，统一前端展示文案

components/ns-goods-sku/ns-goods-sku-index.vue

@@ -67,13 +67,13 @@ export default {
 			let cart_id = cart ? cart.cart_id : 0;
 			if (_num > parseInt(data.stock)) {
 				this.$util.showToast({
-					title: this.$lang('sku.stockInsufficient')
+					title: '商品库存不足'
 				});
 				return;
 			}
 			if (data.is_limit && data.max_buy && _num > parseInt(data.max_buy)) {
 				this.$util.showToast({
-					title: this.$lang('sku.maxBuyPerPerson') + data.max_buy + (data.unit || this.$lang('sku.unit'))
+					title: `该商品每人限购${data.max_buy}${data.unit || '件'}`
 				});
 				return;
 			}
@@ -121,7 +121,7 @@ export default {
 								res.data;
 						}
 						this.$util.showToast({
-							title: this.$lang('sku.addToCartSuccess')
+							title: "商品添加购物车成功"
 						});
 						this.$store.commit('setCartChange');
 						this.$store.dispatch('cartCalculate');
@@ -147,7 +147,7 @@ export default {
 				success: res => {
 					if (res.code >= 0) {
 						let item = res.data;
-						item.unit = item.unit || this.$lang('goods.piece');
+						item.unit = item.unit || '件';
 
 						if (item.sku_images) item.sku_images = item.sku_images.split(',');
 						else item.sku_images = [];