fix(inbound): route fabric DM channels as peer.kind='direct' / ChatType='direct'

Inbound was hardcoding `peer: { kind: 'group' }` and `ChatType: 'group'`
for every fabric channel regardless of xType. As a result:

- sessionKey for a DM was `agent:<id>:fabric:group:<chan>` instead of
  `agent:<id>:fabric:direct:<chan>`
- ctx.ChatType='group' caused user-prompt metadata to render
  `is_group_chat: true` on a DM
- openclaw's `isDirectMessage()` check (ChatType==='direct') returned
  false, so DM-specific prompt and turn behavior never engaged

Caught by recruiter test in session 40c51de2: the model's thinking trace
acknowledged "fabric DM channel" (from the ClawPrompts chat-injector
hook) but the surrounding user-prompt metadata contradicted it with
`is_group_chat: true`, and the model reasoned its way out of running
`workflow_start`.

Fix factors a small helper `fabricPeerRoutingForXType` (and a cache-
backed `fabricPeerRoutingForChannel` for outbound) in channel.ts that
maps:
  - 'dm'  → { peerKind: 'direct', chatType: 'direct' }
  - rest  → { peerKind: 'group',  chatType: 'group' }   (no change)

Inbound uses m.xType directly (live, authoritative). Outbound has no
xType in its call signature, so it consults the channel-meta cache
populated by inbound (same `getChannelType` already exposed via
__fabric). Cache miss falls back to 'group' — the pre-fix default, no
regression. The proactive-DM-without-prior-inbound edge case still
routes that one outbound as 'group'; the next round agrees on 'direct'.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

dist/fabric/src/channel.js

@@ -11,6 +11,15 @@
 import { createChatChannelPlugin, createChannelPluginBase, buildChannelOutboundSessionRoute, } from 'openclaw/plugin-sdk/core';
 import { FabricClient } from './fabric-client.js';
 import { listFabricAccountIds, resolveFabricAccount, resolveDefaultFabricAccountId, } from './accounts.js';
+import { getChannelType } from './channel-meta.js';
+export function fabricPeerRoutingForXType(xType) {
+    if (xType === 'dm')
+        return { peerKind: 'direct', chatType: 'direct' };
+    return { peerKind: 'group', chatType: 'group' };
+}
+export function fabricPeerRoutingForChannel(channelId) {
+    return fabricPeerRoutingForXType(getChannelType(channelId));
+}
 // ---- target grammar: fabric:<channelId> ----
 export function stripFabricTargetPrefix(raw) {
     let s = (raw ?? '').trim();
@@ -38,13 +47,18 @@ export function resolveFabricOutboundSessionRoute(params) {
     const id = stripFabricTargetPrefix(params.target);
     if (!id)
         return null;
+    // Consult the channel-meta cache populated by inbound — DM channels
+    // need peer.kind='direct' so the outbound session key matches the
+    // inbound one. Cache miss falls back to 'group' (the pre-fix default,
+    // no regression on cold cache).
+    const { peerKind, chatType } = fabricPeerRoutingForChannel(id);
     return buildChannelOutboundSessionRoute({
         cfg: params.cfg,
         agentId: params.agentId,
         channel: 'fabric',
         accountId: params.accountId,
-        peer: { kind: 'group', id },
-        chatType: 'group',
+        peer: { kind: peerKind, id },
+        chatType,
         from: `fabric:channel:${id}`,
         to: `fabric:${id}`,
     });