2026.8.0-b4

Prerelease of 2026.8.0 for testing. Update Helios to this version in HACS and hard-refresh.

What's new since b3

• Your own map, fully themeable: the basemap is now Helios's own vector renderer built on OpenFreeMap (open data, no key), with a new Map configuration editor section, theme every layer (ground, water, roads, paths, railways, buildings...) via Auto / Dark / Light / Custom.
• The scene follows the sun: the whole scene is graded through the day/night cycle.
• Sun-only card: hide every chip to get a pure sun-position + location card (great for a shutters or climate page).
• Easier mobile scrolling: swipe to scroll the page straight past the card; rotate with a short press-and-hold (#308).
• Clearer default timeline: the default period is now Forecast (yesterday to +2 days); the timeline + period-selector borders take the active chip's colour.

Fixes

• The dashed timeline lines (solar forecast + per-bank battery SoC) now always draw their full length.
• The solar forecast no longer drops its future days after switching periods.

Under the hood

• All 27 languages completed to full parity.
• A large internal cleanup pass (dead-code removal, shared helpers, clearer names).

Full notes in CHANGELOG.md. Feedback very welcome on the issues.