fix(agents): normalize windows workspace path boundary checks (#30766)

Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

src/agents/path-policy.test.ts

@@ -0,0 +1,38 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+const resolveSandboxInputPathMock = vi.hoisted(() => vi.fn());
+
+vi.mock("./sandbox-paths.js", () => ({
+  resolveSandboxInputPath: resolveSandboxInputPathMock,
+}));
+
+import { toRelativeWorkspacePath } from "./path-policy.js";
+
+describe("toRelativeWorkspacePath (windows semantics)", () => {
+  beforeEach(() => {
+    resolveSandboxInputPathMock.mockReset();
+    resolveSandboxInputPathMock.mockImplementation((filePath: string) => filePath);
+  });
+
+  it("accepts windows paths with mixed separators and case", () => {
+    const platformSpy = vi.spyOn(process, "platform", "get").mockReturnValue("win32");
+    try {
+      const root = "C:\\Users\\User\\OpenClaw";
+      const candidate = "c:/users/user/openclaw/memory/log.txt";
+      expect(toRelativeWorkspacePath(root, candidate)).toBe("memory\\log.txt");
+    } finally {
+      platformSpy.mockRestore();
+    }
+  });
+
+  it("rejects windows paths outside workspace root", () => {
+    const platformSpy = vi.spyOn(process, "platform", "get").mockReturnValue("win32");
+    try {
+      const root = "C:\\Users\\User\\OpenClaw";
+      const candidate = "C:\\Users\\User\\Other\\log.txt";
+      expect(() => toRelativeWorkspacePath(root, candidate)).toThrow("Path escapes workspace root");
+    } finally {
+      platformSpy.mockRestore();
+    }
+  });
+});