v0.4.0

v0.4.0

Brightness

• Reworked LCD brightness slider to 8 logarithmic steps (0.1, 0.2, 0.5, 1, 2, 5, 10, 20) for finer control at low levels
• Lowered minimum brightness from 0.5% to 0.1%

EDF data accuracy

• Extensive work to match AS11-generated EDF files as closely as possible
• ESP-generated EDFs are now nearly identical to the AS11 gold standard, with only minor quantisation and rounding differences inherent to the BLE data path
• Aligned BRP/PLD/SA2 timestamps and data range to AS11 MaskOn/MaskOff behavior
• STR.edf timestamps corrected to NTP time with per-day clock drift compensation
• Short sessions now produce header-only EDFs matching AS11 convention

Reliability

• Atomic write-to-temp-then-rename for all EDF files to prevent corruption from power loss or crashes
• Automatic BLE reconnect on unexpected disconnect to prevent missed TherapyStop events
• Fixed session gluing and mutex deadlock bugs in session writer
• Added unlink-before-rename for FATFS compatibility and improved error logging