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/sudoers.d/callrec-cpucap

@@ -0,0 +1 @@
+callrec ALL=(root) NOPASSWD: /opt/callrec/aime-cpucap.sh

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

system/etc/wireplumber/wireplumber.conf.d/50-headless-bluez.conf

@@ -0,0 +1,5 @@
+wireplumber.profiles = {
+  main = {
+    monitor.bluez.seat-monitoring = disabled
+  }
+}

system/etc/wireplumber/wireplumber.conf.d/53-bluez-nosuspend.conf

@@ -0,0 +1,6 @@
+monitor.bluez.rules = [
+  {
+    matches = [ { node.name = "~bluez_.*" } ]
+    actions = { update-props = { session.suspend-timeout-seconds = 0 node.pause-on-idle = false } }
+  }
+]

system/etc/wireplumber/wireplumber.conf.d/54-es8323-clock.conf

@@ -0,0 +1,18 @@
+# es8323: S16 mode buggy -> force S24LE. Also rockchip-es8323 glitches under pw's
+# MMAP/timer access (arecord RW is clean) -> force RW (disable-mmap) + big period.
+monitor.alsa.rules = [
+  {
+    matches = [ { node.name = "~alsa_(input|output)\.platform-es8323-sound.*" } ]
+    actions = {
+      update-props = {
+        audio.format            = "S24LE"
+        api.alsa.disable-mmap   = true
+        api.alsa.disable-batch  = true
+        api.alsa.period-size    = 1024
+        api.alsa.headroom       = 8192
+        session.suspend-timeout-seconds = 0
+        node.pause-on-idle      = false
+      }
+    }
+  }
+]