feat(i18n): add internationalization support with i18next

- Add i18next and related dependencies for internationalization
- Implement language switcher component with English and Chinese support
- Create translation files for English and Chinese locales
- Update login and home pages to use translations
- Configure i18n initialization with language detection
- Add dayjs locale synchronization with i18n language changes
- Update tsconfig and eslint to ignore new locales directory
- Remove unused App.css and simplify index.css
- Update npmrc with mirror configuration

package.json

@@ -1,5 +1,5 @@
 {
-  "name": "rag_flow_web_frontend",
+  "name": "teres_web_frontend",
   "private": true,
   "version": "0.0.0",
   "type": "module",
@@ -14,10 +14,19 @@
     "@emotion/styled": "^11.14.1",
     "@mui/icons-material": "^7.3.4",
     "@mui/material": "^7.3.4",
+    "ahooks": "^3.9.5",
+    "axios": "^1.12.2",
+    "dayjs": "^1.11.18",
+    "i18next": "^25.5.3",
+    "i18next-browser-languagedetector": "^8.2.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
+    "react-hook-form": "^7.64.0",
+    "react-i18next": "^16.0.0",
     "react-is": "18.3.1",
-    "react-router-dom": "^7.9.4"
+    "react-router-dom": "^7.9.4",
+    "uuid": "^13.0.0",
+    "zustand": "^5.0.8"
   },
   "devDependencies": {
     "@eslint/js": "^9.36.0",