WhatsApp: move outbound session routing behind plugin boundary

extensions/whatsapp/src/channel.ts

@@ -18,6 +18,7 @@ import { isWhatsAppGroupJid, normalizeWhatsAppTarget } from "openclaw/plugin-sdk
 import { resolveWhatsAppAccount, type ResolvedWhatsAppAccount } from "./accounts.js";
 import { looksLikeWhatsAppTargetId, normalizeWhatsAppMessagingTarget } from "./normalize.js";
 import { getWhatsAppRuntime } from "./runtime.js";
+import { resolveWhatsAppOutboundSessionRoute } from "./session-route.js";
 import { whatsappSetupAdapter } from "./setup-core.js";
 import {
   createWhatsAppPluginBase,
@@ -82,6 +83,7 @@ export const whatsappPlugin: ChannelPlugin<ResolvedWhatsAppAccount> = {
   },
   messaging: {
     normalizeTarget: normalizeWhatsAppMessagingTarget,
+    resolveOutboundSessionRoute: (params) => resolveWhatsAppOutboundSessionRoute(params),
     parseExplicitTarget: ({ raw }) => parseWhatsAppExplicitTarget(raw),
     inferTargetChatType: ({ to }) => parseWhatsAppExplicitTarget(to)?.chatType,
     targetResolver: {

extensions/whatsapp/src/session-route.ts

@@ -0,0 +1,26 @@
+import {
+  buildChannelOutboundSessionRoute,
+  type ChannelOutboundSessionRouteParams,
+} from "openclaw/plugin-sdk/core";
+import { isWhatsAppGroupJid, normalizeWhatsAppTarget } from "openclaw/plugin-sdk/whatsapp";
+
+export function resolveWhatsAppOutboundSessionRoute(params: ChannelOutboundSessionRouteParams) {
+  const normalized = normalizeWhatsAppTarget(params.target);
+  if (!normalized) {
+    return null;
+  }
+  const isGroup = isWhatsAppGroupJid(normalized);
+  return buildChannelOutboundSessionRoute({
+    cfg: params.cfg,
+    agentId: params.agentId,
+    channel: "whatsapp",
+    accountId: params.accountId,
+    peer: {
+      kind: isGroup ? "group" : "direct",
+      id: normalized,
+    },
+    chatType: isGroup ? "group" : "direct",
+    from: normalized,
+    to: normalized,
+  });
+}