Move un-implemented items to Unreleased section

- 'system default' conversion in SwitchDevice still exists (partially fixed)
- wpctl interface abstraction not implemented

changelog.txt

@@ -6,13 +6,18 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/).
 
 ## [Unreleased]
 
+### Fixed
+- Device restore path passes invalid device name "system default" to SDL (should pass "" for default)
+
+### Changed (Major Refactors)
+- Mixer package: extract wpctl calls behind an interface
+
 ## [07112026-1710]
 
 ### Fixed
 - Play() deadlocks when called before device is open (recursive SwitchDevice -> Play)
 - Audio volume silently zeroed after switching output devices (Init used hardcoded 0.20; SwitchDevice did not restore saved volume)
 - SwitchDevice not persisted to database across restarts (caller now saves to AppConfig)
-- Device restore path passes invalid device name "system default" to SDL (now passes "" for default)
 - Stop() no-op when audio toggled off mid-playback (removed AudioEnabled guard from Stop)
 - App shows "READY" before audio files finish downloading (state machine now gates READY on download completion via DOWNLOADING_ASSETS state)
 - Download failure no longer silently allows READY (downloadFailed flag prevents premature READY)
@@ -31,7 +36,6 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/).
 
 ### Changed (Major Refactors)
 - Mixer package: inject audio backend dependencies for testability
-- Mixer package: extract wpctl calls behind an interface
 - SwitchDevice now takes *db.AppConfig to access saved volume
 - Audio files moved from ~/.local/share/rhemawave/audio to ~/.radiantwave/audio
 - State machine uses DOWNLOADING_ASSETS state before READY