feat: komplette Codebase vom Board ins Repo gespiegelt

app/ = /opt/callrec (Node-Backend, Vite-Frontend, Python-Inferenz,
Audio-Skripte, rkllm_server.cpp), system/ = systemd-Units,
WirePlumber/PipeWire-Drop-ins, sudoers. Modelle, Binaries, Aufnahmen
und node_modules bleiben draussen (.gitignore).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

system/home/callrec/.config/systemd/user/aime-volume-headset.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=CallRec Windows volume -> USB headset bridge
+After=aime-usb-audio.service
+Wants=aime-usb-audio.service
+[Service]
+Type=simple
+ExecStart=/opt/callrec/aime-volbridge-headset.sh
+Restart=always
+RestartSec=2
+[Install]
+WantedBy=default.target