v2.8.1

What's New

• Okin CB35 controller for Sealy Posturematic beds — 4-motor support with head, back, legs, and feet plus massage
• Keeson KSBT04C variant with checksum for Beautyrest Baselogic beds
• Auto-discovery for Malouf NEW_OKIN, Comfort Motion, and Reverie Nightstand beds (previously required manual setup)

Bug Fixes

• Fix missing BLE lock in Reverie Nightstand controller that could cause concurrent GATT operation errors
• Fix double integration reload when saving options
• Fix CB24 detection when both Nordic UART UUID and OKIN manufacturer ID are present
• Sync English translations with strings.json — adds missing services, entities, exceptions, and Jensen PIN labels