Recording popup, level meters, UX polish

- Recording tray icon opens popup (mics + active recording streams)
- Recording stream level meters forward from parent source signal
- RecordingTray subclass for single-click (no double-click needed)
- Context menu Set Default Output/Input shows checkmark when active
- Last DeviceWidget in each row hides its right separator
- Popup horizontal layout, configurable content (output/mic/apps)
- Single-click tray, right-click menu for Open Mixer
- Desktop file, icon, CMake install rules
- Window bring-to-front across workspaces (KWin::forceActiveWindow)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2 files changed, 6 insertions, 1 deletions

diff --git a/src/model/pulsedevice.cpp b/src/model/pulsedevice.cpp
index de778b9..8bdea54 100644
--- a/src/model/pulsedevice.cpp
+++ b/src/model/pulsedevice.cpp
@@ -110,6 +110,7 @@ void PulseDevice::startMonitoring()
         pa_stream_set_read_callback( m_monitorStream, monitorReadCb, this );
 
         // For sink inputs, filter peak detection to just this stream.
+        // Source outputs don't support pa_stream_set_monitor_stream; they connect to the source directly.
         if ( m_category == Playback )
             pa_stream_set_monitor_stream( m_monitorStream, m_paIndex );
 
diff --git a/src/model/pulsemodel.cpp b/src/model/pulsemodel.cpp
index a677edc..640b918 100644
--- a/src/model/pulsemodel.cpp
+++ b/src/model/pulsemodel.cpp
@@ -596,7 +596,11 @@ void PulseModel::customEvent( TQCustomEvent *e )
         if ( ev->cat == AudioDevice::Recording && ev->parentIndex != PA_INVALID_INDEX ) {
             m_sourceOutputToSource.insert( ev->paIndex, ev->parentIndex );
             PulseDevice *src = findDevice( m_sources, ev->parentIndex );
-            if ( src ) src->adjustRecordingCount( +1 );
+            if ( src ) {
+                src->adjustRecordingCount( +1 );
+                connect( src,  TQ_SIGNAL(levelChanged(float)),
+                         dev,  TQ_SIGNAL(levelChanged(float)) );
+            }
         }
     }
 }