[matteius]

Closes #656.

What changed

• Recovered the partial live.* and setupWizard.* translations for seven locales from the stalled DigitalOcean Harness workspace, then completed all missing keys in the 17 non-English catalogs. Each locale now has all 2,645 English keys.
• Repaired existing translations that had broken RTSP/API example URLs, translated keyboard shortcuts or <stream_name>, omitted API help details, or contained placeholder artifacts.
• Added a Jest coverage report that warns on future missing keys and fails on orphan keys, invalid interpolation tokens, markup, example URLs, technical names, shortcuts, blank values, or placeholder artifacts.

Validation

• cd web && npm test -- --runInBand
• cd web && npx vite build
• cd web && npx eslint tests/locale-coverage.spec.js
• Browser spot-check of Settings, Event Routing, and Investigation in German, Japanese, and Arabic using a temporary local LightNVR backend.
• Confirmed catalog JSON parses and original key order is preserved.

Review note

These translations were machine-produced. Native-speaker review is especially welcome for Japanese, both Chinese variants, Arabic, and Korean. The app still falls back to English for any future missing keys; rollback is a revert.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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