- Add get_suggested_languages() to i18n.py returning ≤6 ranked
suggestions (current locale → Accept-Language header → popular
language fallbacks); refactor _parse_accept_language to share
a common _parse_accept_language_entries() helper
- Inject suggested_languages into every template context (base.py)
- Redesign nav-bar language dropdown (base.html): button shows
current-language flag emoji; dropdown lists 5-7 suggestions with
flags and native names; Alpine.js search input filters all 77
languages live; footer shows count and Search shortcut
- Add language.search_placeholder and language.no_results keys to
all 77 translation JSON files (en values; external script
propagates translations to other locales)
- Remove test_all_languages_have_same_keys (external sync script
owns key completeness); add TestGetSuggestedLanguages (7 unit
tests); update test_language_selector_in_nav for new HTML
- Update InternationalizationGuide.md: single-step en.json-only
workflow for adding new translation keys
- Update .github/copilot-instructions.md: add i18n/l10n section
documenting the en.json-only rule for future agents
Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>