The strategic log content already refreshes via HTMX on lang-changed
(server-side translation lookup), but the chat sidebar's static labels
— title, hint, helper lede, textarea placeholder, Send button — were
baked into the HTML by Jinja at page render and only updated after a
full reload.
Add a tiny client-side i18n dictionary (CASSANDRA_I18N) plus
applyI18n(lang) in base.html. cassandraSetLang() now calls
applyI18n(newLang) right after the language PATCH succeeds and before
firing the HTMX triggers, so labels swap in step with the AI content.
Convention: <element data-i18n="key">…</element> sets textContent;
<input data-i18n-placeholder="key" …> sets .placeholder. Initial
render still goes through the existing {% if user_lang == 'it' %}
Jinja blocks so there's no flash of English on page load for IT users
— applyI18n is a no-op until the toggle is clicked.
Only the chat sidebar has bindings today. Adding more labels later is
a matter of dropping a key into the dict and tagging the element.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Giorgio Gilestro
fca05aef7a