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/etc/systemd/system/aime-audio-out.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=Aime PC->headset audio bridge (USB gadget capture -> ES8323 playback)
+After=aime-gadget.service sound.target
+Wants=aime-gadget.service
+
+[Service]
+Type=simple
+ExecStartPre=/opt/callrec/aime-mixer-out.sh
+ExecStart=/bin/sh -c 'exec arecord -D hw:2,0 -f S16_LE -r 48000 -c 2 -B 300000 -F 30000 | aplay -D plughw:0 -f S16_LE -r 48000 -c 2 -B 300000 -F 30000'
+Restart=always
+RestartSec=2
+
+[Install]
+WantedBy=multi-user.target

system/etc/systemd/system/aime-gadget.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=Aime UAC2 USB audio gadget
+After=sys-kernel-config.mount usb-gadget.target
+Wants=sys-kernel-config.mount
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=/usr/local/sbin/aime-gadget.sh
+ExecStop=/bin/sh -c "echo > /sys/kernel/config/usb_gadget/aime/UDC 2>/dev/null; true"
+
+[Install]
+WantedBy=multi-user.target

system/etc/systemd/system/aime-headset-keys.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=Aime H390 inline volume/mute buttons -> headset sink
+After=sound.target
+[Service]
+Type=simple
+ExecStart=/usr/bin/python3 /opt/callrec/aime-headset-keys.py
+Restart=always
+RestartSec=2
+[Install]
+WantedBy=multi-user.target

system/etc/systemd/system/aime-volume.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=Aime Windows volume -> ES8323 output bridge
+After=aime-audio-out.service
+Wants=aime-audio-out.service
+
+[Service]
+Type=simple
+ExecStart=/opt/callrec/aime-volbridge-alsa.sh
+Restart=always
+RestartSec=2
+
+[Install]
+WantedBy=multi-user.target

system/etc/systemd/system/callrec-btwatch.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=CallRec BT headset auto-connect watcher
+After=bluetooth.service
+Requires=bluetooth.service
+
+[Service]
+ExecStart=/opt/callrec/btwatch.sh
+Restart=always
+RestartSec=3
+
+[Install]
+WantedBy=multi-user.target

system/etc/systemd/system/callrec-perf.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=CallRec performance tuning (CPU governor = performance)
+After=multi-user.target
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=/bin/sh -c 'for g in /sys/devices/system/cpu/cpufreq/policy*/scaling_governor; do echo performance > $g; done'
+ExecStop=/bin/sh -c 'for g in /sys/devices/system/cpu/cpufreq/policy*/scaling_governor; do echo ondemand > $g; done'
+
+[Install]
+WantedBy=multi-user.target

system/etc/systemd/system/callrec.service

@@ -0,0 +1,19 @@
+[Unit]
+Description=CallRec - BT recording + Whisper transcription web app
+After=network-online.target mariadb.service
+Wants=network-online.target
+
+[Service]
+Type=simple
+User=callrec
+WorkingDirectory=/opt/callrec
+Environment=NODE_ENV=production
+Environment=XDG_RUNTIME_DIR=/run/user/1000
+Environment=DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/1000/bus
+Environment=PORT=3000
+ExecStart=/usr/bin/node /opt/callrec/server.js
+Restart=on-failure
+RestartSec=3
+
+[Install]
+WantedBy=multi-user.target

system/etc/systemd/system/callrec.service.d/gemma-model.conf

@@ -0,0 +1,2 @@
+[Service]
+Environment=RKLLM_MODEL=/opt/rkllm-models/gemma3-4b-w8a8g128-16k.rkllm