feat(openclaw): route all Discord DMs to main session (#6405)

Change dmScope from 'per-channel-peer' to 'main' so all Discord DMs
are routed to the main session instead of creating separate sessions
per DM conversation.

Co-authored-by: Miso <miso@openclaw.local>
Co-authored-by: Jory Irving <46251616+joryirving@users.noreply.github.com>

Author: 3 people

kubernetes/apps/base/llm/openclaw/app/externalsecret.yaml

@@ -415,7 +415,7 @@ spec:
               },
             },
             session: {
-              dmScope: "per-channel-peer",
+              dmScope: "main",
               maintenance: {
                 mode: "enforce",
                 pruneAfter: "7d",