feat: add and optimize multiple multilingual language packs

1. 新增拼团、砍价、分销、支付、地址、账户等多业务场景的中英文本地化文案
2. 替换项目中硬编码的文本为多语言调用，统一前端页面文案展示
3. 新增多个业务组件的国际化语言配置文件

lang/en-us/components/ns-birthday-gift.js

@@ -0,0 +1,27 @@
+export const lang = {
+	// ===== ns-birthday-gift component =====
+	nsBirthdayGift: {
+		// Title
+		birthdayGift: 'Birthday Gift',
+
+		// Blessing message
+		defaultBlessing: 'Thank you for your continued support. On your birthday, we send you our most sincere blessings!',
+
+		// Points
+		points: 'points',
+		pointDesc: 'Use for cash deduction or product exchange',
+
+		// Red packet
+		yuanRedPacket: ' yuan red packet',
+		nonWithdrawable: 'Non-withdrawable red packet',
+		withdrawable: 'Withdrawable red packet',
+
+		// Coupon
+		yuanCoupon: ' yuan coupon',
+		discount: '% off',
+		couponDesc: 'Use for cash deduction or product exchange',
+
+		// Action button
+		viewNow: 'View Now',
+	}
+}