v0.7.0 — ISDT A8 Air support

New device: ISDT A8 Air (8-channel charger)

Full support for the ISDT A8 Air, including all 8 charging slots with per-channel state, voltage, current, capacity, internal resistance, and device-level input voltage/current.

What's new since v0.6.0

• ISDT A8 Air support — 8-channel NiMH/Cd charger with mega-packet parsing for bundled channel data
• Input voltage/current — Device-level sensors for USB input monitoring
• Raw data logger — Dedicated .raw sub-loggers for hex dumps without breaking HA's logger config

Credits

Huge thanks to @stuartp44 for the initial A8 Air implementation, testing every beta, providing detailed logs and screenshots, and catching the issues that made this release solid. A8 Air support wouldn't be here without his help.