feat(core-shared): add isAdmin access helper

packages/core-shared/src/payload/access/is-admin.test.ts

@@ -0,0 +1,20 @@
+import { describe, expect, it } from "vitest";
+import { isAdmin } from "./is-admin";
+
+describe("isAdmin", () => {
+  it("returns true when user role is 'admin'", () => {
+    expect(isAdmin({ req: { user: { role: "admin" } } })).toBe(true);
+  });
+
+  it("returns false when user role is not 'admin'", () => {
+    expect(isAdmin({ req: { user: { role: "editor" } } })).toBe(false);
+  });
+
+  it("returns false when user has no role", () => {
+    expect(isAdmin({ req: { user: {} } })).toBe(false);
+  });
+
+  it("returns false when there is no user", () => {
+    expect(isAdmin({ req: {} })).toBe(false);
+  });
+});

packages/core-shared/src/payload/access/is-admin.ts

@@ -0,0 +1,7 @@
+export function isAdmin({
+  req,
+}: {
+  req: { user?: { role?: string } };
+}): boolean {
+  return req.user?.role === "admin";
+}