Add Battery Meter Support#46
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Adds a compact graphical battery indicator powered by a MAX17048 I2C fuel gauge, shown in the main status bar and machine selection screen. - Auto-detects MAX17048 on the shared I2C bus at startup; silently disables if not present so the feature is opt-in via hardware. - Custom battery widget (outline + fill bar + nub + percentage label) with color coding: green (>55%), amber (20-55%), red (<20%), cyan (charging) with a lightning bolt overlay while charging. - machine_name fixed width (80px) to keep top-row layout deterministic and prevent overlap with WPos Z and the battery widget. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The charging lightning bolt overlay was drawn in BATTERY_CHARGING (cyan) on top of the battery fill which turns the same cyan when charging, making the bolt invisible. Use TEXT_LIGHT for high contrast against the cyan fill. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Adds a compact graphical battery indicator powered by a MAX17048 I2C fuel gauge, shown in the main status bar and machine selection screen.