fix: document onboarding dmScope default as breaking change (#23468) (thanks @bmendonca3)

docs/start/wizard-cli-reference.md

@@ -215,6 +215,7 @@ Typical fields in `~/.openclaw/openclaw.json`:
 - `agents.defaults.workspace`
 - `agents.defaults.model` / `models.providers` (if Minimax chosen)
 - `gateway.*` (mode, bind, auth, tailscale)
+- `session.dmScope` (local onboarding defaults this to `per-channel-peer` when unset; existing explicit values are preserved)
 - `channels.telegram.botToken`, `channels.discord.token`, `channels.signal.*`, `channels.imessage.*`
 - Channel allowlists (Slack, Discord, Matrix, Microsoft Teams) when you opt in during prompts (names resolve to IDs when possible)
 - `skills.install.nodeManager`

docs/start/wizard.md

@@ -50,6 +50,7 @@ The wizard starts with **QuickStart** (defaults) vs **Advanced** (full control).
     - Workspace default (or existing workspace)
     - Gateway port **18789**
     - Gateway auth **Token** (auto‑generated, even on loopback)
+    - DM isolation default: `session.dmScope: "per-channel-peer"` (existing explicit `session.dmScope` values are preserved)
     - Tailscale exposure **Off**
     - Telegram + WhatsApp DMs default to **allowlist** (you'll be prompted for your phone number)
   </Tab>