feat(cli): add Traditional Chinese (zh-TW) as a UI language option (#3569)

* feat(cli): add Traditional Chinese (zh-TW) as a UI language option

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix: use upstream unused-keys-only-in-locales.json to resolve conflict

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* revert: remove check-i18n.ts changes to avoid pre-existing zh.js issues

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* feat(cli): add Traditional Chinese (zh-TW) as a UI language option

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): add WITTY_LOADING_PHRASES to zh-TW locale

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): sync zh-TW.js with en.js keys, fix double-escape, fix check-i18n.ts

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix: resolve conflict in unused-keys-only-in-locales.json

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): add missing Performance translation to zh-TW

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): add quotes to Performance key in zh-TW

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): regenerate zh-TW.js with correct multi-line value parsing

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix: resolve conflict in unused-keys-only-in-locales.json

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): regenerate zh-TW.js with correct multi-line value parsing

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): standardize zh-TW.js key quoting and sync zh.js keys

- Convert zh-TW.js keys from double-quoted to single-quoted to match en.js style
- Fix zh.js key mismatches: add missing keys (Value:, No server selected, prompts, required, Enum) and remove extra keys (The name of the extension to update, Session (temporary))
- Regenerate unused-keys-only-in-locales.json

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

* fix(cli): update loading phrases when UI language changes

Add getCurrentLanguage() to useMemo deps in usePhraseCycler so that
WITTY_LOADING_PHRASES re-evaluates after a /language switch instead of
staying locked to the language active at mount time.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(i18n): normalize locale separators and fix case-insensitive language lookup

- detectSystemLanguage(): normalize POSIX locales (e.g. zh_TW.UTF-8 → zh-tw)
  by replacing underscores with hyphens and lowercasing before matching, so
  users with LANG=zh_TW.UTF-8 correctly detect zh-TW instead of falling
  through to zh
- getLanguageNameFromLocale(): compare codes case-insensitively so that
  normalizeOutputLanguage('zh-TW') resolves to 'Traditional Chinese' instead
  of falling back to 'English'
- Add test cases for zh-TW / zh-tw / ZH-TW in normalizeOutputLanguage

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* fix(test): update getLanguageNameFromLocale mock to include zh-TW

Add 'zh-tw' entry to the mock map and normalize locale input with
toLowerCase() so the mock mirrors the real case-insensitive implementation.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

package-lock.json

@@ -12842,7 +12842,6 @@
       "os": [
         "darwin"
       ],
-      "peer": true,
       "engines": {
         "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
       }