Merge pull request #5643 from nesquena/release/stage-i18n2

Release: complete 664 UI translations across 8 locales (#5535)

CHANGELOG.md

@@ -11,6 +11,7 @@
 
 - **Scheduled jobs get a preset schedule builder.** The cron job form now has a "Preset" dropdown (Hourly / Daily / Weekdays / Weekly / Monthly, plus Custom) above the Schedule field — pick one and it fills the schedule for you (e.g. Daily → `0 9 * * *`, Hourly → `every 1h`) instead of hand-writing a cron expression. "Custom" keeps the free-text field, and editing an existing job maps its schedule back to the matching preset. Thanks @rodboev. (#5438, #5427)
 - **Add a self-hosted provider (Ollama or LM Studio) from Settings.** After onboarding, a new Settings control lets you point WebUI at a local OpenAI-compatible model server (Ollama / LM Studio) by choosing the provider, model, and base URL — no hand-editing `config.yaml`. The base URL is validated (scheme + provider allowlist) and persisted for the agent's provider client. An optional "Test connection" button reuses the existing authenticated onboarding probe to fetch the model list from the URL you enter. Thanks @rodboev. (#5408, #3260)
+- **Completed the remaining UI translations across all 8 non-English locales.** 664 strings that still fell back to English (marked `TODO` in the locale table) are now translated, so the German / Spanish / French / Japanese / Korean / Portuguese / Chinese / Russian interfaces are fully localized. No new selectable language was added — this fills in the languages already offered. Interpolation tokens are preserved per key. Thanks @mo7al876any. (#5535, #5530)
 
 ### Documentation