refactor(agents): unify subagent announce delivery pipeline

Co-authored-by: Smith Labs <SmithLabsLLC@users.noreply.github.com>
Co-authored-by: Do Cao Hieu <docaohieu2808@users.noreply.github.com>

src/infra/outbound/message.test.ts

@@ -4,6 +4,7 @@ const mocks = vi.hoisted(() => ({
   getChannelPlugin: vi.fn(),
   resolveOutboundTarget: vi.fn(),
   deliverOutboundPayloads: vi.fn(),
+  loadOpenClawPlugins: vi.fn(),
 }));
 
 vi.mock("../../channels/plugins/index.js", () => ({
@@ -11,6 +12,19 @@ vi.mock("../../channels/plugins/index.js", () => ({
   getChannelPlugin: mocks.getChannelPlugin,
 }));
 
+vi.mock("../../agents/agent-scope.js", () => ({
+  resolveDefaultAgentId: () => "main",
+  resolveAgentWorkspaceDir: () => "/tmp/openclaw-test-workspace",
+}));
+
+vi.mock("../../config/plugin-auto-enable.js", () => ({
+  applyPluginAutoEnable: ({ config }: { config: unknown }) => ({ config, changes: [] }),
+}));
+
+vi.mock("../../plugins/loader.js", () => ({
+  loadOpenClawPlugins: mocks.loadOpenClawPlugins,
+}));
+
 vi.mock("./targets.js", () => ({
   resolveOutboundTarget: mocks.resolveOutboundTarget,
 }));
@@ -19,13 +33,17 @@ vi.mock("./deliver.js", () => ({
   deliverOutboundPayloads: mocks.deliverOutboundPayloads,
 }));
 
+import { setActivePluginRegistry } from "../../plugins/runtime.js";
+import { createTestRegistry } from "../../test-utils/channel-plugins.js";
 import { sendMessage } from "./message.js";
 
 describe("sendMessage", () => {
   beforeEach(() => {
+    setActivePluginRegistry(createTestRegistry([]));
     mocks.getChannelPlugin.mockClear();
     mocks.resolveOutboundTarget.mockClear();
     mocks.deliverOutboundPayloads.mockClear();
+    mocks.loadOpenClawPlugins.mockClear();
 
     mocks.getChannelPlugin.mockReturnValue({
       outbound: { deliveryMode: "direct" },
@@ -37,8 +55,8 @@ describe("sendMessage", () => {
   it("passes explicit agentId to outbound delivery for scoped media roots", async () => {
     await sendMessage({
       cfg: {},
-      channel: "mattermost",
-      to: "channel:town-square",
+      channel: "telegram",
+      to: "123456",
       content: "hi",
       agentId: "work",
     });
@@ -46,9 +64,34 @@ describe("sendMessage", () => {
     expect(mocks.deliverOutboundPayloads).toHaveBeenCalledWith(
       expect.objectContaining({
         agentId: "work",
-        channel: "mattermost",
-        to: "channel:town-square",
+        channel: "telegram",
+        to: "123456",
       }),
     );
   });
+
+  it("recovers telegram plugin resolution so message/send does not fail with Unknown channel: telegram", async () => {
+    const telegramPlugin = {
+      outbound: { deliveryMode: "direct" },
+    };
+    mocks.getChannelPlugin
+      .mockReturnValueOnce(undefined)
+      .mockReturnValueOnce(telegramPlugin)
+      .mockReturnValue(telegramPlugin);
+
+    await expect(
+      sendMessage({
+        cfg: { channels: { telegram: { botToken: "test-token" } } },
+        channel: "telegram",
+        to: "123456",
+        content: "hi",
+      }),
+    ).resolves.toMatchObject({
+      channel: "telegram",
+      to: "123456",
+      via: "direct",
+    });
+
+    expect(mocks.loadOpenClawPlugins).toHaveBeenCalledTimes(1);
+  });
 });