feat: add quickstart onboarding defaults

docs/start/wizard.md

@@ -24,6 +24,20 @@ Follow‑up reconfiguration:
 clawdbot configure
 ```
 
+## QuickStart vs Advanced
+
+The wizard starts with **QuickStart** (defaults) vs **Advanced** (full control).
+
+**QuickStart** keeps the defaults:
+- Local gateway (loopback)
+- Workspace default (or existing workspace)
+- Gateway port **18789**
+- Gateway auth **Off** (loopback only)
+- Tailscale exposure **Off**
+- Telegram + WhatsApp DMs default to **allowlist** (you’ll be prompted for a number)
+
+**Advanced** exposes every step (mode, workspace, gateway, providers, daemon, skills).
+
 ## What the wizard does
 
 **Local mode (default)** walks you through: