* Extract hardcoded strings to i18n
Replace numerous hardcoded English strings with I18n lookups (t / I18n.t) across controllers, views, helpers, and components, and convert model validation error messages to symbol keys. Added multiple locale files under config/locales for models and views. This centralizes user-facing notices/alerts, UI text, import/validation messages, and prepares the app for localization and easier translation maintenance.
* Update en.yml
* Update preview-cleanup.yml
* Revert "Update preview-cleanup.yml"
This reverts commit 1ba6d3c34c.
* test: align i18n assertions with translated messages
* Standardize balance error key and tweak locales
Replace SophtronAccount's :requires_balance error key with :no_balance and update related locale strings for sophtron, plaid, and simplefin accounts to use the new key and clearer copy. Also switch the QIF upload redirect notice to use a relative translation key (t('.qif_uploaded')), remove an unused SSO providers help line, and fix a trailing-newline/whitespace issue in the subscriptions locale. These changes standardize validation keys and improve translation consistency and messaging.
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Co-authored-by: KiloClaw <kiloclaw@openclaw.ai>
