Backend (api/index.php):
- callGemini() now extracts usageMetadata (tokens_in/tokens_out) from response
- _recordAiUsage() persists monthly token data to data/ai_usage.json
- callGeminiWithFallback() accepts $usageAction param; all 15 call sites labeled
- gemini_usage endpoint: returns token stats, cost estimate, log info, DB size
- smartShopping(): rolling 90-day EWMA (70% last-30d / 30% days-31-90)
with fallback to all-time rate when <14 days of history
Frontend (index.html + app.js):
- New Info tab (ℹ️) in Settings with Gemini usage and System cards
- _loadInfoTab() / _renderInfoTab(): loads on click, auto-refreshes every 30s
- switchSettingsTab() stops auto-refresh when leaving Info tab
Translations (it/en/de): settings.info.* keys
dadaloop82
9f554c6e22