install: shell cc kit, opt-in autostart, bootstrap

cc kit as a sourced ~/.config/claudedo/cc.sh (bash+zsh, forced explicit names).
opt-in rc autostart guarded by CLAUDEDO_AUTOSTART + an optional systemd user
unit. install.sh is idempotent: WSL audio deps, ~/.asoundrc pulse shim, audio
verify, model prime, and source-line rc wiring with backups.

Signed-off-by: disqualifier <dev@disqualifier.me>

shell/claudedo.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=claudedo voice-control daemon for claude code
+Documentation=https://github.com/dsql/claudedo
+After=default.target
+
+[Service]
+Type=simple
+ExecStart=%h/.local/bin/claudedo start
+Restart=on-failure
+RestartSec=3
+Environment=PULSE_SERVER=unix:/mnt/wslg/PulseServer
+
+[Install]
+WantedBy=default.target