v3.30.0

v3.30.0 Kext Idle Strategy, KASLR Anchor, SMU Barrier & Weak Self Fix

Kext (AMDRyzenCPUPowerManagement)

• Runtime Idle Strategy: Replaced compile-time #ifdef idle strategy (PMRYZEN_IDLE_SIMPLE/MWAIT) with runtime selection via pmRyzen_idle_strategy global + switch. Zen 4/5 (Family 19h ≥60h, Family 1Ah) automatically use MONITOR/MWAIT for lower idle power draw; Zen 3- continue with safe sti;hlt. No more #error guards or rebuilds needed when CPU family changes.
• KASLR Slide Dual-Anchor: Added _mh_execute_header as the primary KASLR slide anchor (stable Mach-O header symbol), with &version as fallback. Both validated against canonical kernel range >= 0xFFFFFF8000000000. The old single-anchor approach relied only on &version which could be removed from the kernel export set.
• SMU Mailbox Memory Barrier: Inserted __asm__ volatile("mfence" ::: "memory") between smnWrite32(msgReg, cmd) and the response poll loop in smuSendCmd. Prevents write-combining buffers on the SMN bus from delaying command delivery, which could cause spurious timeouts in the poll path.

App (AMD Power Gadget)

• Weak Self in Task Closures: Added [weak self] + guard let self to all 3 remaining Task { @MainActor } closures in TelemetryModel.swift (init(), sample(), commitPendingChanges()). Prevents the tasks from prolonging the TelemetryModel singleton lifetime when they outlive the object.

Chart Tooltips (Interactive Hover)

• Clean tooltip display: Removed debug x/y coordinates and raw data index from chart hover tooltips. Replaced custom DateFormatter with SwiftUI's built-in Text(timestamp, style: .time). Eliminated leftover cursor-line rectangles that were inadvertently left from interactive tooltip development.