fix(auth): translate every baselined string and retire the :auth lint baseline

[demolaf]

Translates the 43 MissingTranslation strings held in auth/lint-baseline.xml across all 84 locale folders, then deletes the baseline and its baseline = line. No module in the repo declares a baseline any more, and ./gradlew lintAll is green without it.

Changes

• 42 were untranslated UI copy. Nothing was authored cold: each locale's own already-translated vocabulary set the register, so the fui_loading_* strings take their progressive form from fui_progress_dialog_signing_in rather than a guess.
• The 43rd was never translation debt. fui_sms_terms_of_service_and_privacy_policy_extended was translated everywhere by "Translations for 4.0"; feat: Error Recovery & Dialog #2225 deleted one line from values-ko alone, restored here verbatim.
• Four tools:ignore="UntranslatedResource" sites, all Account: %1$s in languages where "account" is the word, each carrying its reason.
• Two OKF lines drop a baseline count that had already drifted from 180 to 43, and the values/strings.xml override comment moves below fui_error_user_disabled, which is live translatable copy rather than one of the empty hooks it describes.

Verified across 43 strings and 84 folders: no missing entries, no malformed XML, no placeholder drift, and no unsuppressed value identical to base English outside the seven values-en-r* folders the check skips.

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Maintainer note: Fixes internal CPRN-483

[gemini-code-assist]

Code Review

This pull request updates various resource files to include new strings for re-authentication, MFA management, and profile completion. The reviewer identified that the Bengali translation file (values-bn/strings.xml) contains Hindi (Devanagari) text instead of the correct Bengali translations. I have kept these comments as they point out a critical localization issue that needs to be addressed.