refactor: route channel runtime via plugin api

extensions/msteams/src/conversation-store-fs.test.ts

@@ -2,12 +2,29 @@ import fs from "node:fs";
 import os from "node:os";
 import path from "node:path";
 
-import { describe, expect, it } from "vitest";
+import { beforeEach, describe, expect, it } from "vitest";
 
+import type { PluginRuntime } from "clawdbot/plugin-sdk";
 import type { StoredConversationReference } from "./conversation-store.js";
 import { createMSTeamsConversationStoreFs } from "./conversation-store-fs.js";
+import { setMSTeamsRuntime } from "./runtime.js";
+
+const runtimeStub = {
+  state: {
+    resolveStateDir: (env: NodeJS.ProcessEnv = process.env, homedir?: () => string) => {
+      const override = env.CLAWDBOT_STATE_DIR?.trim();
+      if (override) return override;
+      const resolvedHome = homedir ? homedir() : os.homedir();
+      return path.join(resolvedHome, ".clawdbot");
+    },
+  },
+} as unknown as PluginRuntime;
 
 describe("msteams conversation store (fs)", () => {
+  beforeEach(() => {
+    setMSTeamsRuntime(runtimeStub);
+  });
+
   it("filters and prunes expired entries (but keeps legacy ones)", async () => {
     const stateDir = await fs.promises.mkdtemp(path.join(os.tmpdir(), "clawdbot-msteams-store-"));