feat(i18n): add translations for zh-Hans, de, fr, es, ja, pt-BR

Ships first-pass AI translations for six locales on top of the existing
English base, plus a simple JSON-per-locale contributor workflow so new
languages can land as a single PR.

- 518 keys translated per locale (proper nouns / brand names / format-
  only strings left to fall back to English by design — see the
  "Non-blocking (intentional verbatim)" section of scarf/docs/I18N.md).
- Per-locale source-of-truth lives in tools/translations/<locale>.json;
  tools/merge-translations.py writes them into Localizable.xcstrings
  and is idempotent (re-runnable as translators iterate).
- InfoPlist.xcstrings (macOS microphone permission prompt) translated
  for all six locales.
- knownRegions expanded: zh-Hans, de, fr now join by es, ja, pt-BR.
- CONTRIBUTING.md gains an "Adding a Language" section documenting the
  fork → JSON → merge → PR flow. Native-speaker reviews welcome.

Closes #13 (the original ask: Simplified Chinese support).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Alan Wizemann
2026-04-20 18:16:41 -07:00
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Public docs live in the [GitHub wiki](https://github.com/awizemann/scarf/wiki). Small fixes (typos, clarifications) can be made via the "Edit" button on any wiki page — you need push access to the main repo. For larger changes, clone the wiki locally (`git clone git@github.com:awizemann/scarf.wiki.git`) or open an issue describing the proposed change.
## Adding a Language
Scarf ships with English + Simplified Chinese, German, French, Spanish, Japanese, and Brazilian Portuguese. To add another locale (or improve an existing one):
1. **Fork** the repo and create a branch.
2. **Add the locale to `knownRegions`** in `scarf/scarf.xcodeproj/project.pbxproj` — follow the existing list (e.g. add `it` after `"pt-BR"`).
3. **Drop a new JSON file at `tools/translations/<locale>.json`** — copy an existing one (say `tools/translations/es.json`) as a starting point. Each entry maps the English source string to your translation. Keys you omit fall back to English at runtime — do that for proper nouns (Scarf, Hermes, Anthropic, OAuth, SSH, …) and for anything technical that shouldn't translate.
4. **Preserve format specifiers exactly**: `%@`, `%lld`, `%d`, positional `%1$@` / `%2$lld`, etc. If word order needs to change in your language, use positional forms (`%1$@ … %2$@`).
5. **Add your locale to `tools/merge-translations.py`'s `LOCALES` list** and run `python3 tools/merge-translations.py` — this writes your translations into `scarf/scarf/Localizable.xcstrings`.
6. **Translate `scarf/scarf/InfoPlist.xcstrings`** (the macOS microphone-permission prompt) for your locale. Add a new `stringUnit` under `localizations`.
7. **Build** (`xcodebuild -project scarf/scarf.xcodeproj -scheme scarf build`) and **sanity-check in Xcode**: Scheme → Run → App Language → your locale. Walk the main views (Dashboard, Chat, Settings) and look for clipping or obvious leaks.
8. **Open a PR** including the new JSON file, the updated catalog, and the pbxproj / script changes. Mention which routes you spot-checked.
AI translation is fine for the first pass — it's how the initial six locales landed. Native-speaker review improves quality and is always welcome, either as a follow-up PR or as review comments on the initial one.
See [scarf/docs/I18N.md](scarf/docs/I18N.md) for deeper context on the String Catalog setup and which strings are intentionally kept verbatim.
## Reporting Issues
Open an issue with: