fix: iMac mic quiet - arecord raw + 12x software gain, strip WAV RIFF header, wakeword api 0.4.0, STT base.en tests, voiceID Adolfo 0.97 enrolled

scripts/build_portaudio.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+# Build PortAudio locally in user space if system lib missing
+set -e
+cd /tmp
+if [ -d portaudio ]; then
+    echo "portaudio src exists, skipping clone"
+else
+    git clone https://github.com/PortAudio/portaudio.git
+fi
+cd portaudio
+./configure --prefix=$HOME/.local --without-jack
+make -j$(nproc)
+make install
+echo "Installed to ~/.local/lib"
+echo "Add to LD_LIBRARY_PATH: export LD_LIBRARY_PATH=\$HOME/.local/lib:\$LD_LIBRARY_PATH"
+ldconfig -n $HOME/.local/lib || true