feat(issue-17): add onboarding wizard for new users (#26)

* feat(issue-17): add onboarding wizard for new users

Adds a step-based onboarding wizard that guides new users through their
first Claw3D setup: welcome, prerequisites, gateway connection, agent
discovery, and a completion screen.

Architecture:

src/features/onboarding/ (new feature module):
  - types.ts: Step definitions, navigation helpers (getNextStep/getPrevStep)
  - useOnboardingState.ts: localStorage-backed persistence hook
  - index.ts: Barrel exports for clean imports
  - components/OnboardingWizard.tsx: Main wizard container with step
    navigation, progress bar, and modal overlay
  - components/WelcomeStep.tsx: Feature highlights grid
  - components/PrerequisitesStep.tsx: Checklist with links/commands
  - components/ConnectStep.tsx: Compact gateway connection form
  - components/AgentsStep.tsx: Agent discovery feedback
  - components/CompleteStep.tsx: Final screen with CTA

Design decisions:
  - Modular step system: new steps can be added by extending
    OnboardingStepId and registering a component in the switch
  - localStorage persistence: wizard shows once per browser, resettable
    from settings (future: wire into Studio settings API)
  - Connect step gates forward navigation: users cannot skip connection
  - Follows Claw3D conventions: feature-first module, no shared state
    pollution, Tailwind utility classes, lucide-react icons
  - Does NOT modify existing routes or components — zero-risk integration
    (parent wiring left to maintainer preference)

Integration guide (for maintainer):
  1. Import { OnboardingWizard, useOnboardingState } from the module
  2. Add useOnboardingState() to the root layout or agents page
  3. Render <OnboardingWizard /> when showOnboarding is true
  4. Pass gateway connection props from existing store

tests/unit/onboardingTypes.test.ts (13 tests):
  - Step structure validation, navigation helpers, ordering

tests/unit/onboardingState.test.ts (5 tests):
  - localStorage persistence, show/hide/reset lifecycle

Addresses #17

* fix(onboarding): wire wizard launch into office UI

Mount the onboarding wizard in OfficeScreen and add a settings action that can re-open it so the new-user flow is reachable and testable.

Made-with: Cursor

---------

Co-authored-by: Neo <neo@openclaw.ai>
Co-authored-by: iamlukethedev <lucas.guilherme@smartwayslfl.com>

tests/unit/onboardingState.test.ts

@@ -0,0 +1,63 @@
+import { afterEach, describe, expect, it, vi } from "vitest";
+import { act, renderHook } from "@testing-library/react";
+import { useOnboardingState } from "@/features/onboarding/useOnboardingState";
+
+describe("useOnboardingState", () => {
+  afterEach(() => {
+    // Clean up localStorage between tests
+    try {
+      window.localStorage.removeItem("claw3d:onboarding:completed");
+    } catch {
+      // noop
+    }
+  });
+
+  it("shows onboarding by default when localStorage is empty", () => {
+    const { result } = renderHook(() => useOnboardingState());
+    expect(result.current.showOnboarding).toBe(true);
+  });
+
+  it("hides onboarding after completeOnboarding is called", () => {
+    const { result } = renderHook(() => useOnboardingState());
+    expect(result.current.showOnboarding).toBe(true);
+
+    act(() => {
+      result.current.completeOnboarding();
+    });
+
+    expect(result.current.showOnboarding).toBe(false);
+  });
+
+  it("persists completion to localStorage", () => {
+    const { result } = renderHook(() => useOnboardingState());
+
+    act(() => {
+      result.current.completeOnboarding();
+    });
+
+    expect(window.localStorage.getItem("claw3d:onboarding:completed")).toBe(
+      "true",
+    );
+  });
+
+  it("reads completion state from localStorage on mount", () => {
+    window.localStorage.setItem("claw3d:onboarding:completed", "true");
+    const { result } = renderHook(() => useOnboardingState());
+    expect(result.current.showOnboarding).toBe(false);
+  });
+
+  it("resets onboarding when resetOnboarding is called", () => {
+    const { result } = renderHook(() => useOnboardingState());
+
+    act(() => {
+      result.current.completeOnboarding();
+    });
+    expect(result.current.showOnboarding).toBe(false);
+
+    act(() => {
+      result.current.resetOnboarding();
+    });
+    expect(result.current.showOnboarding).toBe(true);
+    expect(window.localStorage.getItem("claw3d:onboarding:completed")).toBeNull();
+  });
+});