Add one-command install script and stability fixes

- Add install.sh for automated setup
- Add all component files (wrapper, service, config, verify)
- Add stability fixes section (WiFi PowerSave disable + Watchdog)
- Update README with new installation instructions

02-deploy.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+set -euo pipefail
+
+echo "🖥️  Deploying Record Player → Sonos AUX..."
+
+cd /home/pi
+
+# Copy files
+cp 03-darkice-wrapper.sh .
+cp 04-sonos-aux.service /etc/systemd/system/sonos-aux.service
+cp darkice.cfg.example darkice.cfg  # Edit your passwords!
+
+chmod +x darkice-wrapper.sh
+sudo chown root:audio darkice-wrapper.sh
+sudo chmod 755 darkice-wrapper.sh
+
+# Fix USB audio = card 0 always
+echo "blacklist snd_bcm2835" | sudo tee -a /etc/modprobe.d/raspi-blacklist.conf
+sudo sed -i 's/^options snd-usb-audio index=-2/#options snd-usb-audio index=-2/' /lib/modprobe.d/aliases.conf
+
+# Icecast setup (one-time)
+sudo systemctl enable icecast2
+sudo systemctl start icecast2
+
+# Systemd service
+sudo systemctl daemon-reload
+sudo systemctl enable sonos-aux.service
+
+echo "✅ Reboot to finish: sudo reboot"
+echo "Then check: journalctl -u sonos-aux.service -f"