feat(agent): add typed server API tools

tests/frontendAction/callIdPlugin.test.ts

@@ -2,7 +2,7 @@ import { describe, expect, it } from "bun:test";
 import { readdirSync, readFileSync } from "node:fs";
 import { join } from "node:path";
 
-import { FRONTEND_ACTION_TOOLS, frontendActionCallIdPlugin } from "../../.opencode/plugins/frontend-action-call-id.js";
+import { FRONTEND_ACTION_TOOLS, frontendActionCallIdPlugin, server } from "../../.opencode/plugins/frontend-action-call-id.js";
 import { frontendActionRegistry } from "../../src/frontendAction/registry.js";
 
 const frontendActionToolNames = () => readdirSync(".opencode/tools")
@@ -17,6 +17,10 @@ describe("frontend action call ID plugin", () => {
     expect(config.plugin).toContain("./.opencode/plugins/frontend-action-call-id.ts");
   });
 
+  it("exposes the server export required by OpenCode", () => {
+    expect(server).toBe(frontendActionCallIdPlugin);
+  });
+
   it("overwrites forged IDs only for allowlisted tools", async () => {
     const hooks = await frontendActionCallIdPlugin({} as never);
     const before = hooks["tool.execute.before"];