Implements power saving optimizations to extend battery life on solar-powered remote air quality sensors:
- WiFi Power Saving: Disable WiFi 10 minutes after boot to save ~100-200mA
- Configurable via web UI checkbox in admin panel
- WiFi automatically re-enables after reboot for 10-minute configuration window
- Systemd timer (nebuleair-wifi-powersave.timer) manages automatic disable
- New wifi/power_save.py script checks database config and disables WiFi via nmcli
- HDMI Disable: Added hdmi_blanking=2 to boot config to save ~20-30mA
- Automatically configured during installation
- Database: Added wifi_power_saving boolean config (default: disabled)
- Uses INSERT OR IGNORE for safe updates to existing installations
- UI: Added checkbox control in admin.html for WiFi power saving
- Includes helpful description of power savings and behavior
- Services: Updated setup_services.sh and update_firmware.sh to manage new timer
Total power savings: ~120-230mA when WiFi power saving enabled
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
**Core System:**
- Add i18n.js translation library with data-attribute support
- Create translation files (fr.json, en.json) with offline support
- Store language preference in SQLite config_table
- Add backend endpoints for get/set language
**UI Features:**
- Add language switcher dropdown to topbar (🇫🇷 FR / 🇬🇧 EN)
- Auto-sync language selection across all pages
- Support for static HTML and dynamically created elements
**Implementation:**
- Migrate sensors.html as working example
- Add data-i18n attributes to all UI elements
- Support for buttons, inputs, and dynamic content
- Comprehensive README documentation in html/lang/
**Technical Details:**
- Works completely offline (local JSON files)
- No external dependencies
- Database-backed user preference
- Event-based language change notifications
- Automatic translation on page load
Next steps: Gradually migrate other pages (admin, wifi, index, etc.)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
