## ADDED Requirements

### Requirement: Register page at /register
The system SHALL serve a registration page at `/register` (route `src/app/(public)/register/page.tsx`). The page SHALL match the Lovable design mockup from `lovable_design_html/candles_lovable_design_register_page.html`.

#### Scenario: Register page renders
- **WHEN** an unauthenticated user navigates to `/register`
- **THEN** the register page renders with a centered card containing the registration form

#### Scenario: Authenticated user redirected
- **WHEN** an authenticated user navigates to `/register`
- **THEN** they are redirected to `/app`

### Requirement: Register page navigation
The register page navbar SHALL display a back arrow and the CandleAnnotator logo/name, linking to `/` (landing page).

#### Scenario: Back to landing
- **WHEN** a user clicks the CandleAnnotator logo in the register page navbar
- **THEN** they are navigated to `/`

### Requirement: Registration form
The register card SHALL display a "Create account" heading, "Start annotating charts in seconds" subtitle, and a form with name input, email input, password input (min 8 characters hint), and "Create Account" submit button.

#### Scenario: Successful registration
- **WHEN** a user fills in name, email, and password (8+ chars) and clicks "Create Account"
- **THEN** a POST request is sent to `/api/auth/register` with `{ name, email, password }`
- **AND** on success (HTTP 201), the user is automatically signed in via `signIn("credentials", { email, password })` and redirected to `/app`

#### Scenario: Duplicate email error
- **WHEN** a user registers with an email that already exists
- **THEN** an error message is displayed: "Email already registered"

#### Scenario: Short password error
- **WHEN** a user enters a password shorter than 8 characters
- **THEN** an error message is displayed: "Password must be at least 8 characters"

#### Scenario: Missing fields
- **WHEN** a user clicks "Create Account" with empty required fields
- **THEN** browser-native validation prevents submission (fields are `required`)

### Requirement: Google OAuth registration button
The register form SHALL include a "Continue with Google" button. Clicking it SHALL call `signIn("google", { callbackUrl: "/app" })`. If the user is new, Auth.js creates their account automatically.

#### Scenario: Google registration
- **WHEN** a new user clicks "Continue with Google"
- **THEN** they are redirected to Google OAuth, and on success a user record is created and they land on `/app`

### Requirement: Login link
The register page SHALL display "Already have an account? Sign in" below the form. "Sign in" SHALL link to `/login`.

#### Scenario: Navigate to login
- **WHEN** a user clicks "Sign in"
- **THEN** they are navigated to `/login`