test(mattermost): slim leaf runtime fixtures

extensions/mattermost/src/mattermost/interactions.test.ts

@@ -1,6 +1,6 @@
 import { type IncomingMessage, type ServerResponse } from "node:http";
 import { describe, expect, it, beforeEach, afterEach, vi } from "vitest";
-import { createPluginRuntimeMock } from "../../../../test/helpers/plugins/plugin-runtime-mock.js";
+import type { PluginRuntime } from "../../runtime-api.js";
 import { setMattermostRuntime } from "../runtime.js";
 import { resolveMattermostAccount } from "./accounts.js";
 import type { MattermostClient, MattermostPost } from "./client.js";
@@ -441,13 +441,11 @@ describe("createMattermostInteractionHandler", () => {
       options: { sessionKey?: string | null; sessionId?: string | null; userId?: string | null },
     ) => boolean = () => true,
   ) {
-    setMattermostRuntime(
-      createPluginRuntimeMock({
-        system: {
-          enqueueSystemEvent,
-        },
-      }),
-    );
+    setMattermostRuntime({
+      system: {
+        enqueueSystemEvent,
+      },
+    } as unknown as PluginRuntime);
   }
 
   function createMattermostClientMock(

extensions/mattermost/src/mattermost/reply-delivery.test.ts

@@ -3,8 +3,7 @@ import os from "node:os";
 import path from "node:path";
 import type { ChunkMode } from "openclaw/plugin-sdk/reply-runtime";
 import { describe, expect, it, vi } from "vitest";
-import { createPluginRuntimeMock } from "../../../../test/helpers/plugins/plugin-runtime-mock.js";
-import type { OpenClawConfig } from "../../runtime-api.js";
+import type { OpenClawConfig, PluginRuntime } from "../../runtime-api.js";
 import { deliverMattermostReplyPayload } from "./reply-delivery.js";
 
 type DeliverMattermostReplyPayloadParams = Parameters<typeof deliverMattermostReplyPayload>[0];
@@ -13,7 +12,7 @@ type ReplyDeliveryMarkdownTableMode = Parameters<
 >[1];
 
 function createReplyDeliveryCore(): DeliverMattermostReplyPayloadParams["core"] {
-  return createPluginRuntimeMock({
+  return {
     channel: {
       text: {
         chunkByNewline: vi.fn((text: string) => [text]),
@@ -35,7 +34,7 @@ function createReplyDeliveryCore(): DeliverMattermostReplyPayloadParams["core"]
         chunkMarkdownTextWithMode: vi.fn((text: string) => [text]),
       },
     },
-  });
+  } as unknown as PluginRuntime;
 }
 
 describe("deliverMattermostReplyPayload", () => {