feat: 擴展 i18n 支援 65 種語言 + 完整文件系統

🌐 國際化 (i18n)
- 從 5 種語言擴展到 65 種語言支援
- 新增：歐洲語系 (de, fr, es, it, pt, ru, nl, pl, tr, uk, cs, sv, da, fi, no, el, hu, ro, bg, hr, sk, sl, lt, lv, et, is, ga, cy, mt, mk, sq, ca, eu, gl, sr)
- 新增：中東語系 (ar, he, fa)
- 新增：南亞語系 (hi, bn, ta, te, mr, gu, kn, ml, ne, si)
- 新增：東南亞語系 (th, vi, id, ms, fil, my, km, lo)
- 新增：非洲語系 (af, sw, am, zu)
- 完整翻譯所有 UI 文字

📖 文件系統
- 重構 README.md 為入口型首頁
- 新增 docs/getting-started.md - 快速入門指南
- 新增 docs/docker.md - Docker 部署指南
- 新增 docs/environment-variables.md - 環境變數說明
- 新增 docs/url-id-and-storage.md - 儲存結構說明
- 新增 docs/advanced-usage.md - 進階使用指南
- 更新 docs/i18n.md - 65 種語言清單

✅ 建構驗證
- TypeScript 編譯通過
- Docker 建構通過

src/locales/ms.json

@@ -0,0 +1,106 @@
+{
+  "common": {
+    "appName": "ConvertX-CN",
+    "poweredBy": "Dikuasakan oleh",
+    "version": "v{version}",
+    "loading": "Memuatkan...",
+    "error": "Ralat",
+    "success": "Berjaya",
+    "confirm": "Sahkan",
+    "cancel": "Batal",
+    "close": "Tutup",
+    "save": "Simpan",
+    "delete": "Padam",
+    "remove": "Buang",
+    "download": "Muat turun",
+    "upload": "Muat naik",
+    "submit": "Hantar",
+    "back": "Kembali",
+    "next": "Seterusnya",
+    "yes": "Ya",
+    "no": "Tidak"
+  },
+  "nav": {
+    "history": "Sejarah",
+    "account": "Akaun",
+    "logout": "Log keluar",
+    "login": "Log masuk",
+    "register": "Daftar",
+    "language": "Bahasa"
+  },
+  "convert": {
+    "title": "Tukar",
+    "titleWithType": "Tukar .{fileType}",
+    "chooseFile": "Pilih fail",
+    "orDragHere": "atau seret ke sini",
+    "searchConversions": "Cari penukaran",
+    "convertTo": "Tukar ke",
+    "convertButton": "Tukar",
+    "uploading": "Memuat naik...",
+    "processing": "Memproses..."
+  },
+  "results": {
+    "title": "Keputusan",
+    "convertedFileName": "Nama Fail Ditukar",
+    "status": "Status",
+    "actions": "Tindakan",
+    "downloadAll": "Semua",
+    "downloadTar": "Tar",
+    "deleteJob": "Padam",
+    "noFiles": "Tiada fail ditukar lagi.",
+    "statusPending": "Menunggu",
+    "statusCompleted": "Selesai",
+    "statusFailed": "Gagal"
+  },
+  "history": {
+    "title": "Keputusan",
+    "time": "Masa",
+    "files": "Fail",
+    "filesDone": "Fail Selesai",
+    "status": "Status",
+    "actions": "Tindakan",
+    "expandDetails": "Kembangkan butiran",
+    "detailedFileInfo": "Maklumat Fail Terperinci:",
+    "deleteSelected": "Padam Terpilih",
+    "selectAll": "Pilih semua",
+    "confirmDelete": "Adakah anda pasti mahu memadam {count} kerja? Tindakan ini tidak boleh dibatalkan.",
+    "deleteSuccess": "Berjaya memadam {deleted} kerja.",
+    "deleteFailed": "Gagal memadam {failed} kerja.",
+    "deleteError": "Ralat berlaku semasa memadam kerja. Sila cuba lagi."
+  },
+  "auth": {
+    "email": "E-mel",
+    "password": "Kata Laluan",
+    "currentPassword": "Kata Laluan Semasa",
+    "newPassword": "Kata Laluan (kosongkan jika tidak berubah)",
+    "loginButton": "Log Masuk",
+    "registerButton": "Daftar",
+    "updateButton": "Kemaskini",
+    "createAccount": "Cipta akaun",
+    "invalidCredentials": "Kelayakan tidak sah.",
+    "emailInUse": "E-mel sudah digunakan.",
+    "unauthorized": "Tidak dibenarkan",
+    "cookiesRequired": "Kuki mesti diaktifkan untuk menggunakan aplikasi ini.",
+    "noCookies": "Tiada kuki pengesahan, mungkin pelayar anda menyekat kuki."
+  },
+  "setup": {
+    "welcome": "Selamat datang ke ConvertX-CN!",
+    "createYourAccount": "Cipta akaun anda",
+    "reportIssues": "Laporkan isu di",
+    "github": "GitHub"
+  },
+  "errors": {
+    "jobNotFound": "Kerja tidak dijumpai.",
+    "fileNotFound": "Fail tidak dijumpai.",
+    "uploadFailed": "Muat naik gagal.",
+    "conversionFailed": "Penukaran gagal.",
+    "serverError": "Ralat pelayan."
+  },
+  "upload": {
+    "success": "Fail berjaya dimuat naik.",
+    "dragDrop": "Lepaskan fail di sini"
+  },
+  "file": {
+    "size": "{size} kB"
+  }
+}