refactor(mcp): remove async facade exports (#22324)

packages/opencode/test/mcp/oauth-auto-connect.test.ts

@@ -1,4 +1,6 @@
 import { test, expect, mock, beforeEach } from "bun:test"
+import { Effect } from "effect"
+import type { MCP as MCPNS } from "../../src/mcp/index"
 
 // Mock UnauthorizedError to match the SDK's class
 class MockUnauthorizedError extends Error {
@@ -122,10 +124,14 @@ test("first connect to OAuth server shows needs_auth instead of failed", async (
   await Instance.provide({
     directory: tmp.path,
     fn: async () => {
-      const result = await MCP.add("test-oauth", {
-        type: "remote",
-        url: "https://example.com/mcp",
-      })
+      const result = await Effect.runPromise(
+        MCP.Service.use((mcp) =>
+          mcp.add("test-oauth", {
+            type: "remote",
+            url: "https://example.com/mcp",
+          }),
+        ).pipe(Effect.provide(MCP.defaultLayer)),
+      )
 
       const serverStatus = result.status as Record<string, { status: string; error?: string }>