[SandObserver]

Summary

• Rename the widget "Click URL" fields to "Link URL", call the GitHub graph period "Past 12 months", and reword the map legend and VPN IP hints in the English source.
• Address the reader as du in German, tú in Spanish and 你 in Chinese throughout, and use the imperative for French instructions.
• Fix wrong meanings, calques and grammar from the language review: GitHub period, VPN public IP, Dock removal, map legend, French credential wording, untranslated "Header" and "Authentication Proxy", gender and plural agreement, and many forms with de/d’.
• Unify terms within each catalogue: proxy de socket, aplicación/application, 仪表板, 程序坞, 地址, Teal and Purple swatches, failed drive states.
• Apply locale typography: French no-break spaces before : ; ! ? and inside « », typographic apostrophes, narrow no-break spaces in z. B., before % and between numbers and units, full-width brackets in Chinese.
• Update the GitHub widget fallbacks, the admin e2e field label and test names for the new English.
• Add house-style tests per locale for address form, French spacing and apostrophes, Spanish ¿ and Chinese full-width punctuation.

Testing
All green. Added 4 house-style tests for de, es, fr and zh-Hans.

Changelog

Changed

• Widget link fields are labelled Link URL.

Fixed

• German, Spanish, French and Chinese text reads naturally, uses one form of address, and follows each language's typography.

Checklist

• Stays within the project constraints: one container, no runtime dependencies, no build step (see CONTRIBUTING.md).
• Tests added or updated for new logic, and the full suite, lint, and typechecks pass.
• Docs updated if behavior or configuration changed.