feat(security,ui): self-host React deps, Tailwind, fonts; strict CSP; local QR; better selection state

Replace CDN React/ReactDOM/Babel with local libs; remove Babel and inline scripts
Build Tailwind locally, add safelist; switch to assets/tailwind.css
Self-host Font Awesome and Inter (CSS + woff2); remove external font CDNs
Implement strict CSP (no unsafe-inline/eval; scripts/styles/fonts from self)
Extract inline handlers; move PWA scripts to external files
Add local QR code generation (qrcode lib) and remove api.qrserver.com
Improve SessionTypeSelector visual selection (highlighted background and ring)
Keep PWA working with service worker and offline assets
Refs: CSP hardening, offline-first, no external dependencies

node_modules/yargs/locales/zh_TW.json

@@ -0,0 +1,47 @@
+{
+  "Commands:": "命令：",
+  "Options:": "選項：",
+  "Examples:": "例：",
+  "boolean": "布林",
+  "count": "次數",
+  "string": "字串",
+  "number": "數字",
+  "array": "陣列",
+  "required": "必須",
+  "default": "預設值",
+  "default:": "預設值:",
+  "choices:": "可選值:",
+  "aliases:": "別名:",
+  "generated-value": "生成的值",
+  "Not enough non-option arguments: got %s, need at least %s": {
+    "one": "non-option 引數不足：只傳入了 %s 個, 至少要 %s 個",
+    "other": "non-option 引數不足：只傳入了 %s 個, 至少要 %s 個"
+  },
+  "Too many non-option arguments: got %s, maximum of %s": {
+    "one": "non-option 引數過多：傳入了 %s 個, 但最多 %s 個",
+    "other": "non-option 引數過多：傳入了 %s 個, 但最多 %s 個"
+  },
+  "Missing argument value: %s": {
+    "one": "此引數無指定值：%s",
+    "other": "這些引數無指定值：%s"
+  },
+  "Missing required argument: %s": {
+    "one": "缺少必須的引數：%s",
+    "other": "缺少這些必須的引數：%s"
+  },
+  "Unknown argument: %s": {
+    "one": "未知的引數：%s",
+    "other": "未知的這些引數：%s"
+  },
+  "Invalid values:": "無效的選項值：",
+  "Argument: %s, Given: %s, Choices: %s": "引數名稱: %s, 傳入的值: %s, 可選的值：%s",
+  "Argument check failed: %s": "引數驗證失敗：%s",
+  "Implications failed:": "缺少依賴的選項：",
+  "Not enough arguments following: %s": "沒有提供足夠的值給此引數：%s",
+  "Invalid JSON config file: %s": "無效的 JSON 設置文件：%s",
+  "Path to JSON config file": "JSON 設置文件的路徑",
+  "Show help": "顯示說明",
+  "Show version number": "顯示版本",
+  "Did you mean %s?": "是指 %s?",
+  "Arguments %s and %s are mutually exclusive" : "引數 %s 和 %s 是互斥的"
+}