refactor(msteams): extract sdk + storage helpers

src/msteams/sdk.ts

@@ -0,0 +1,34 @@
+import type { MSTeamsAdapter } from "./messenger.js";
+import type { MSTeamsCredentials } from "./token.js";
+
+export type MSTeamsSdk = Awaited<
+  ReturnType<typeof import("@microsoft/agents-hosting")>
+>;
+
+export async function loadMSTeamsSdk(): Promise<MSTeamsSdk> {
+  return await import("@microsoft/agents-hosting");
+}
+
+export function buildMSTeamsAuthConfig(
+  creds: MSTeamsCredentials,
+  sdk: MSTeamsSdk,
+) {
+  return sdk.getAuthConfigWithDefaults({
+    clientId: creds.appId,
+    clientSecret: creds.appPassword,
+    tenantId: creds.tenantId,
+  });
+}
+
+export function createMSTeamsAdapter(
+  authConfig: unknown,
+  sdk: MSTeamsSdk,
+): MSTeamsAdapter {
+  return new sdk.CloudAdapter(authConfig) as unknown as MSTeamsAdapter;
+}
+
+export async function loadMSTeamsSdkWithAuth(creds: MSTeamsCredentials) {
+  const sdk = await loadMSTeamsSdk();
+  const authConfig = buildMSTeamsAuthConfig(creds, sdk);
+  return { sdk, authConfig };
+}